Home / 18,318.12-25,279.02-9,934.62

Finding the Fourth Proportional to 18,318.12, 25,279.02 and 9,934.62

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Solution

The fourth proportional to 18,318.12, 25,279.02 and 9,934.62 is: 13,709.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,318.12 : 25,279.02 = 9,934.62 : x
  2. Step 2: Convert to fraction form
    18,318.12/25,279.02 = 9,934.62/x
  3. Step 3: Cross multiply
    18,318.12x = 25,279.02 × 9,934.62
  4. Step 4: Simplify right side
    18,318.12x = 251,137,457.67
  5. Step 5: Solve for x
    x = 251,137,457.67/18,318.12
  6. Step 6: Final answer
    x = 13,709.78

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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.