Home / 11,486.82-15,851.61-6,451.08

Finding the Fourth Proportional to 11,486.82, 15,851.61 and 6,451.08

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Solution

The fourth proportional to 11,486.82, 15,851.61 and 6,451.08 is: 8,902.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,486.82 : 15,851.61 = 6,451.08 : x
  2. Step 2: Convert to fraction form
    11,486.82/15,851.61 = 6,451.08/x
  3. Step 3: Cross multiply
    11,486.82x = 15,851.61 × 6,451.08
  4. Step 4: Simplify right side
    11,486.82x = 102,260,004.24
  5. Step 5: Solve for x
    x = 102,260,004.24/11,486.82
  6. Step 6: Final answer
    x = 8,902.38

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Find fourth proportional to 5,743.41, 7,925.81 and 3,225.54
Half scale
Find fourth proportional to 22,973.64, 31,703.22 and 12,902.16
Double scale
Find fourth proportional to 11,487.82, 15,852.99 and 6,452.08
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.