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Finding the Fourth Proportional to 8,868.68, 13,302.54 and 2,712.68

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Solution

The fourth proportional to 8,868.68, 13,302.54 and 2,712.68 is: 4,068.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.68 : 13,302.54 = 2,712.68 : x
  2. Step 2: Convert to fraction form
    8,868.68/13,302.54 = 2,712.68/x
  3. Step 3: Cross multiply
    8,868.68x = 13,302.54 × 2,712.68
  4. Step 4: Simplify right side
    8,868.68x = 36,085,534.21
  5. Step 5: Solve for x
    x = 36,085,534.21/8,868.68
  6. Step 6: Final answer
    x = 4,068.87

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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.