Home / 18,654.86-27,985.33-5,508.56

Finding the Fourth Proportional to 18,654.86, 27,985.33 and 5,508.56

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Solution

The fourth proportional to 18,654.86, 27,985.33 and 5,508.56 is: 8,263.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,654.86 : 27,985.33 = 5,508.56 : x
  2. Step 2: Convert to fraction form
    18,654.86/27,985.33 = 5,508.56/x
  3. Step 3: Cross multiply
    18,654.86x = 27,985.33 × 5,508.56
  4. Step 4: Simplify right side
    18,654.86x = 154,158,869.42
  5. Step 5: Solve for x
    x = 154,158,869.42/18,654.86
  6. Step 6: Final answer
    x = 8,263.74

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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.