Home / 18,601.38-27,878.33-8,718.89

Finding the Fourth Proportional to 18,601.38, 27,878.33 and 8,718.89

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Solution

The fourth proportional to 18,601.38, 27,878.33 and 8,718.89 is: 13,067.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,601.38 : 27,878.33 = 8,718.89 : x
  2. Step 2: Convert to fraction form
    18,601.38/27,878.33 = 8,718.89/x
  3. Step 3: Cross multiply
    18,601.38x = 27,878.33 × 8,718.89
  4. Step 4: Simplify right side
    18,601.38x = 243,067,909.67
  5. Step 5: Solve for x
    x = 243,067,909.67/18,601.38
  6. Step 6: Final answer
    x = 13,067.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.