Home / 7,432.80-11,149.17-1,886.13

Finding the Fourth Proportional to 7,432.80, 11,149.17 and 1,886.13

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Solution

The fourth proportional to 7,432.80, 11,149.17 and 1,886.13 is: 2,829.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,432.80 : 11,149.17 = 1,886.13 : x
  2. Step 2: Convert to fraction form
    7,432.80/11,149.17 = 1,886.13/x
  3. Step 3: Cross multiply
    7,432.80x = 11,149.17 × 1,886.13
  4. Step 4: Simplify right side
    7,432.80x = 21,028,784.01
  5. Step 5: Solve for x
    x = 21,028,784.01/7,432.80
  6. Step 6: Final answer
    x = 2,829.19

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Double scale
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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.