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Finding the Fourth Proportional to 17,239.80, 23,787.18 and 9,787.80

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Solution

The fourth proportional to 17,239.80, 23,787.18 and 9,787.80 is: 13,505.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,239.80 : 23,787.18 = 9,787.80 : x
  2. Step 2: Convert to fraction form
    17,239.80/23,787.18 = 9,787.80/x
  3. Step 3: Cross multiply
    17,239.80x = 23,787.18 × 9,787.80
  4. Step 4: Simplify right side
    17,239.80x = 232,824,160.40
  5. Step 5: Solve for x
    x = 232,824,160.40/17,239.80
  6. Step 6: Final answer
    x = 13,505.04

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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.