Home / 19,787.04-29,680.56-9,393.12

Finding the Fourth Proportional to 19,787.04, 29,680.56 and 9,393.12

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Solution

The fourth proportional to 19,787.04, 29,680.56 and 9,393.12 is: 14,089.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.04 : 29,680.56 = 9,393.12 : x
  2. Step 2: Convert to fraction form
    19,787.04/29,680.56 = 9,393.12/x
  3. Step 3: Cross multiply
    19,787.04x = 29,680.56 × 9,393.12
  4. Step 4: Simplify right side
    19,787.04x = 278,793,061.75
  5. Step 5: Solve for x
    x = 278,793,061.75/19,787.04
  6. Step 6: Final answer
    x = 14,089.68

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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.