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Finding the Fourth Proportional to 8,982.38, 12,395.68 and 5,256.38

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Solution

The fourth proportional to 8,982.38, 12,395.68 and 5,256.38 is: 7,253.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,982.38 : 12,395.68 = 5,256.38 : x
  2. Step 2: Convert to fraction form
    8,982.38/12,395.68 = 5,256.38/x
  3. Step 3: Cross multiply
    8,982.38x = 12,395.68 × 5,256.38
  4. Step 4: Simplify right side
    8,982.38x = 65,156,329.32
  5. Step 5: Solve for x
    x = 65,156,329.32/8,982.38
  6. Step 6: Final answer
    x = 7,253.80

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1.5x scale

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.