Home / 11,486.10-15,850.45-6,451.22

Finding the Fourth Proportional to 11,486.10, 15,850.45 and 6,451.22

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Solution

The fourth proportional to 11,486.10, 15,850.45 and 6,451.22 is: 8,902.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,486.10 : 15,850.45 = 6,451.22 : x
  2. Step 2: Convert to fraction form
    11,486.10/15,850.45 = 6,451.22/x
  3. Step 3: Cross multiply
    11,486.10x = 15,850.45 × 6,451.22
  4. Step 4: Simplify right side
    11,486.10x = 102,254,740.05
  5. Step 5: Solve for x
    x = 102,254,740.05/11,486.10
  6. Step 6: Final answer
    x = 8,902.48

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Half scale
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Double scale
Find fourth proportional to 11,487.10, 15,851.83 and 6,452.22
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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.