Home / 18,834.32-25,990.45-11,280.97

Finding the Fourth Proportional to 18,834.32, 25,990.45 and 11,280.97

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Solution

The fourth proportional to 18,834.32, 25,990.45 and 11,280.97 is: 15,567.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,834.32 : 25,990.45 = 11,280.97 : x
  2. Step 2: Convert to fraction form
    18,834.32/25,990.45 = 11,280.97/x
  3. Step 3: Cross multiply
    18,834.32x = 25,990.45 × 11,280.97
  4. Step 4: Simplify right side
    18,834.32x = 293,197,356.78
  5. Step 5: Solve for x
    x = 293,197,356.78/18,834.32
  6. Step 6: Final answer
    x = 15,567.19

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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.