Home / 11,420.04-17,131.20-3,100.19

Finding the Fourth Proportional to 11,420.04, 17,131.20 and 3,100.19

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Solution

The fourth proportional to 11,420.04, 17,131.20 and 3,100.19 is: 4,650.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,420.04 : 17,131.20 = 3,100.19 : x
  2. Step 2: Convert to fraction form
    11,420.04/17,131.20 = 3,100.19/x
  3. Step 3: Cross multiply
    11,420.04x = 17,131.20 × 3,100.19
  4. Step 4: Simplify right side
    11,420.04x = 53,109,974.93
  5. Step 5: Solve for x
    x = 53,109,974.93/11,420.04
  6. Step 6: Final answer
    x = 4,650.59

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Half scale
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Double scale
Find fourth proportional to 11,421.04, 17,132.70 and 3,101.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.