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Finding the Fourth Proportional to 8,688.50, 13,035.15 and 2,532.50

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Solution

The fourth proportional to 8,688.50, 13,035.15 and 2,532.50 is: 3,799.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.50 : 13,035.15 = 2,532.50 : x
  2. Step 2: Convert to fraction form
    8,688.50/13,035.15 = 2,532.50/x
  3. Step 3: Cross multiply
    8,688.50x = 13,035.15 × 2,532.50
  4. Step 4: Simplify right side
    8,688.50x = 33,011,517.38
  5. Step 5: Solve for x
    x = 33,011,517.38/8,688.50
  6. Step 6: Final answer
    x = 3,799.45

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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.