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Finding the Fourth Proportional to 8,338.74, 12,507.12 and 4,177.95

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Solution

The fourth proportional to 8,338.74, 12,507.12 and 4,177.95 is: 6,266.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,338.74 : 12,507.12 = 4,177.95 : x
  2. Step 2: Convert to fraction form
    8,338.74/12,507.12 = 4,177.95/x
  3. Step 3: Cross multiply
    8,338.74x = 12,507.12 × 4,177.95
  4. Step 4: Simplify right side
    8,338.74x = 52,254,122.00
  5. Step 5: Solve for x
    x = 52,254,122.00/8,338.74
  6. Step 6: Final answer
    x = 6,266.43

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1.5x scale

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.