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Finding the Fourth Proportional to 8,937.44, 13,407.53 and 2,931.64

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Solution

The fourth proportional to 8,937.44, 13,407.53 and 2,931.64 is: 4,397.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,937.44 : 13,407.53 = 2,931.64 : x
  2. Step 2: Convert to fraction form
    8,937.44/13,407.53 = 2,931.64/x
  3. Step 3: Cross multiply
    8,937.44x = 13,407.53 × 2,931.64
  4. Step 4: Simplify right side
    8,937.44x = 39,306,078.49
  5. Step 5: Solve for x
    x = 39,306,078.49/8,937.44
  6. Step 6: Final answer
    x = 4,397.91

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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.