Home / 8,731.68-13,102.56-3,800.16

Finding the Fourth Proportional to 8,731.68, 13,102.56 and 3,800.16

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Solution

The fourth proportional to 8,731.68, 13,102.56 and 3,800.16 is: 5,702.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.68 : 13,102.56 = 3,800.16 : x
  2. Step 2: Convert to fraction form
    8,731.68/13,102.56 = 3,800.16/x
  3. Step 3: Cross multiply
    8,731.68x = 13,102.56 × 3,800.16
  4. Step 4: Simplify right side
    8,731.68x = 49,791,824.41
  5. Step 5: Solve for x
    x = 49,791,824.41/8,731.68
  6. Step 6: Final answer
    x = 5,702.43

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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.