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Finding the Fourth Proportional to 8,854.59, 12,205.98 and 7,279.95

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Solution

The fourth proportional to 8,854.59, 12,205.98 and 7,279.95 is: 10,035.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,854.59 : 12,205.98 = 7,279.95 : x
  2. Step 2: Convert to fraction form
    8,854.59/12,205.98 = 7,279.95/x
  3. Step 3: Cross multiply
    8,854.59x = 12,205.98 × 7,279.95
  4. Step 4: Simplify right side
    8,854.59x = 88,858,924.10
  5. Step 5: Solve for x
    x = 88,858,924.10/8,854.59
  6. Step 6: Final answer
    x = 10,035.35

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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.