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Finding the Fourth Proportional to 15,052.92, 20,787.10 and 9,684.70

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Solution

The fourth proportional to 15,052.92, 20,787.10 and 9,684.70 is: 13,373.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,052.92 : 20,787.10 = 9,684.70 : x
  2. Step 2: Convert to fraction form
    15,052.92/20,787.10 = 9,684.70/x
  3. Step 3: Cross multiply
    15,052.92x = 20,787.10 × 9,684.70
  4. Step 4: Simplify right side
    15,052.92x = 201,316,751.19
  5. Step 5: Solve for x
    x = 201,316,751.19/15,052.92
  6. Step 6: Final answer
    x = 13,373.93

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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.