Home / 19,387.43-29,081.16-6,239.80

Finding the Fourth Proportional to 19,387.43, 29,081.16 and 6,239.80

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Solution

The fourth proportional to 19,387.43, 29,081.16 and 6,239.80 is: 9,359.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,387.43 : 29,081.16 = 6,239.80 : x
  2. Step 2: Convert to fraction form
    19,387.43/29,081.16 = 6,239.80/x
  3. Step 3: Cross multiply
    19,387.43x = 29,081.16 × 6,239.80
  4. Step 4: Simplify right side
    19,387.43x = 181,460,622.17
  5. Step 5: Solve for x
    x = 181,460,622.17/19,387.43
  6. Step 6: Final answer
    x = 9,359.70

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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.