Home / 18,951.12-26,151.30-10,452.78

Finding the Fourth Proportional to 18,951.12, 26,151.30 and 10,452.78

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Solution

The fourth proportional to 18,951.12, 26,151.30 and 10,452.78 is: 14,424.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,951.12 : 26,151.30 = 10,452.78 : x
  2. Step 2: Convert to fraction form
    18,951.12/26,151.30 = 10,452.78/x
  3. Step 3: Cross multiply
    18,951.12x = 26,151.30 × 10,452.78
  4. Step 4: Simplify right side
    18,951.12x = 273,353,785.61
  5. Step 5: Solve for x
    x = 273,353,785.61/18,951.12
  6. Step 6: Final answer
    x = 14,424.15

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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.