Home / 14,272.39-21,380.88-10,517.35

Finding the Fourth Proportional to 14,272.39, 21,380.88 and 10,517.35

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Solution

The fourth proportional to 14,272.39, 21,380.88 and 10,517.35 is: 15,755.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,272.39 : 21,380.88 = 10,517.35 : x
  2. Step 2: Convert to fraction form
    14,272.39/21,380.88 = 10,517.35/x
  3. Step 3: Cross multiply
    14,272.39x = 21,380.88 × 10,517.35
  4. Step 4: Simplify right side
    14,272.39x = 224,870,278.45
  5. Step 5: Solve for x
    x = 224,870,278.45/14,272.39
  6. Step 6: Final answer
    x = 15,755.61

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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.