Home / 18,600.13-27,876.45-8,717.64

Finding the Fourth Proportional to 18,600.13, 27,876.45 and 8,717.64

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Solution

The fourth proportional to 18,600.13, 27,876.45 and 8,717.64 is: 13,065.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,600.13 : 27,876.45 = 8,717.64 : x
  2. Step 2: Convert to fraction form
    18,600.13/27,876.45 = 8,717.64/x
  3. Step 3: Cross multiply
    18,600.13x = 27,876.45 × 8,717.64
  4. Step 4: Simplify right side
    18,600.13x = 243,016,855.58
  5. Step 5: Solve for x
    x = 243,016,855.58/18,600.13
  6. Step 6: Final answer
    x = 13,065.33

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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.