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Finding the Fourth Proportional to 8,689.86, 13,024.76 and 3,754.52

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Solution

The fourth proportional to 8,689.86, 13,024.76 and 3,754.52 is: 5,627.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,689.86 : 13,024.76 = 3,754.52 : x
  2. Step 2: Convert to fraction form
    8,689.86/13,024.76 = 3,754.52/x
  3. Step 3: Cross multiply
    8,689.86x = 13,024.76 × 3,754.52
  4. Step 4: Simplify right side
    8,689.86x = 48,901,721.92
  5. Step 5: Solve for x
    x = 48,901,721.92/8,689.86
  6. Step 6: Final answer
    x = 5,627.45

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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.