Home / 18,206.18-27,319.89-7,675.56

Finding the Fourth Proportional to 18,206.18, 27,319.89 and 7,675.56

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Solution

The fourth proportional to 18,206.18, 27,319.89 and 7,675.56 is: 11,517.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,206.18 : 27,319.89 = 7,675.56 : x
  2. Step 2: Convert to fraction form
    18,206.18/27,319.89 = 7,675.56/x
  3. Step 3: Cross multiply
    18,206.18x = 27,319.89 × 7,675.56
  4. Step 4: Simplify right side
    18,206.18x = 209,695,279.91
  5. Step 5: Solve for x
    x = 209,695,279.91/18,206.18
  6. Step 6: Final answer
    x = 11,517.81

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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.