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Finding the Fourth Proportional to 8,988.33, 12,402 and 5,452.68

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Solution

The fourth proportional to 8,988.33, 12,402 and 5,452.68 is: 7,523.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.33 : 12,402 = 5,452.68 : x
  2. Step 2: Convert to fraction form
    8,988.33/12,402 = 5,452.68/x
  3. Step 3: Cross multiply
    8,988.33x = 12,402 × 5,452.68
  4. Step 4: Simplify right side
    8,988.33x = 67,624,137.36
  5. Step 5: Solve for x
    x = 67,624,137.36/8,988.33
  6. Step 6: Final answer
    x = 7,523.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.