Home / 18,318.15-25,279.16-10,359.90

Finding the Fourth Proportional to 18,318.15, 25,279.16 and 10,359.90

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Solution

The fourth proportional to 18,318.15, 25,279.16 and 10,359.90 is: 14,296.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,318.15 : 25,279.16 = 10,359.90 : x
  2. Step 2: Convert to fraction form
    18,318.15/25,279.16 = 10,359.90/x
  3. Step 3: Cross multiply
    18,318.15x = 25,279.16 × 10,359.90
  4. Step 4: Simplify right side
    18,318.15x = 261,889,517.88
  5. Step 5: Solve for x
    x = 261,889,517.88/18,318.15
  6. Step 6: Final answer
    x = 14,296.72

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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.