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Finding the Fourth Proportional to 8,750.38, 13,125.42 and 2,176.63

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Solution

The fourth proportional to 8,750.38, 13,125.42 and 2,176.63 is: 3,264.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.38 : 13,125.42 = 2,176.63 : x
  2. Step 2: Convert to fraction form
    8,750.38/13,125.42 = 2,176.63/x
  3. Step 3: Cross multiply
    8,750.38x = 13,125.42 × 2,176.63
  4. Step 4: Simplify right side
    8,750.38x = 28,569,182.93
  5. Step 5: Solve for x
    x = 28,569,182.93/8,750.38
  6. Step 6: Final answer
    x = 3,264.91

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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.