Home / 18,246.30-25,182.45-11,079.78

Finding the Fourth Proportional to 18,246.30, 25,182.45 and 11,079.78

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Solution

The fourth proportional to 18,246.30, 25,182.45 and 11,079.78 is: 15,291.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,246.30 : 25,182.45 = 11,079.78 : x
  2. Step 2: Convert to fraction form
    18,246.30/25,182.45 = 11,079.78/x
  3. Step 3: Cross multiply
    18,246.30x = 25,182.45 × 11,079.78
  4. Step 4: Simplify right side
    18,246.30x = 279,016,005.86
  5. Step 5: Solve for x
    x = 279,016,005.86/18,246.30
  6. Step 6: Final answer
    x = 15,291.65

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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.