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Finding the Fourth Proportional to 8,868.68, 13,301.04 and 4,487.12

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Solution

The fourth proportional to 8,868.68, 13,301.04 and 4,487.12 is: 6,729.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.68 : 13,301.04 = 4,487.12 : x
  2. Step 2: Convert to fraction form
    8,868.68/13,301.04 = 4,487.12/x
  3. Step 3: Cross multiply
    8,868.68x = 13,301.04 × 4,487.12
  4. Step 4: Simplify right side
    8,868.68x = 59,683,362.60
  5. Step 5: Solve for x
    x = 59,683,362.60/8,868.68
  6. Step 6: Final answer
    x = 6,729.68

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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.