Home / 18,167.70-27,251.55-8,779.17

Finding the Fourth Proportional to 18,167.70, 27,251.55 and 8,779.17

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Solution

The fourth proportional to 18,167.70, 27,251.55 and 8,779.17 is: 13,168.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,167.70 : 27,251.55 = 8,779.17 : x
  2. Step 2: Convert to fraction form
    18,167.70/27,251.55 = 8,779.17/x
  3. Step 3: Cross multiply
    18,167.70x = 27,251.55 × 8,779.17
  4. Step 4: Simplify right side
    18,167.70x = 239,245,990.21
  5. Step 5: Solve for x
    x = 239,245,990.21/18,167.70
  6. Step 6: Final answer
    x = 13,168.76

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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.