Home / 8,868.52-13,279.02-6,949.60

Finding the Fourth Proportional to 8,868.52, 13,279.02 and 6,949.60

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Solution

The fourth proportional to 8,868.52, 13,279.02 and 6,949.60 is: 10,405.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.52 : 13,279.02 = 6,949.60 : x
  2. Step 2: Convert to fraction form
    8,868.52/13,279.02 = 6,949.60/x
  3. Step 3: Cross multiply
    8,868.52x = 13,279.02 × 6,949.60
  4. Step 4: Simplify right side
    8,868.52x = 92,283,877.39
  5. Step 5: Solve for x
    x = 92,283,877.39/8,868.52
  6. Step 6: Final answer
    x = 10,405.78

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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.