Home / 18,543.72-27,815.31-4,503.86

Finding the Fourth Proportional to 18,543.72, 27,815.31 and 4,503.86

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Solution

The fourth proportional to 18,543.72, 27,815.31 and 4,503.86 is: 6,755.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,543.72 : 27,815.31 = 4,503.86 : x
  2. Step 2: Convert to fraction form
    18,543.72/27,815.31 = 4,503.86/x
  3. Step 3: Cross multiply
    18,543.72x = 27,815.31 × 4,503.86
  4. Step 4: Simplify right side
    18,543.72x = 125,276,123.02
  5. Step 5: Solve for x
    x = 125,276,123.02/18,543.72
  6. Step 6: Final answer
    x = 6,755.72

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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.