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Finding the Fourth Proportional to 8,487.51, 12,732.68 and 3,557.52

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Solution

The fourth proportional to 8,487.51, 12,732.68 and 3,557.52 is: 5,336.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487.51 : 12,732.68 = 3,557.52 : x
  2. Step 2: Convert to fraction form
    8,487.51/12,732.68 = 3,557.52/x
  3. Step 3: Cross multiply
    8,487.51x = 12,732.68 × 3,557.52
  4. Step 4: Simplify right side
    8,487.51x = 45,296,763.75
  5. Step 5: Solve for x
    x = 45,296,763.75/8,487.51
  6. Step 6: Final answer
    x = 5,336.87

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1.5x scale

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.