Home / 18,331.29-25,297.19-9,947.79

Finding the Fourth Proportional to 18,331.29, 25,297.19 and 9,947.79

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Solution

The fourth proportional to 18,331.29, 25,297.19 and 9,947.79 is: 13,727.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,331.29 : 25,297.19 = 9,947.79 : x
  2. Step 2: Convert to fraction form
    18,331.29/25,297.19 = 9,947.79/x
  3. Step 3: Cross multiply
    18,331.29x = 25,297.19 × 9,947.79
  4. Step 4: Simplify right side
    18,331.29x = 251,651,147.21
  5. Step 5: Solve for x
    x = 251,651,147.21/18,331.29
  6. Step 6: Final answer
    x = 13,727.95

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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.