Home / 18,123.85-27,199.44-8,769.57

Finding the Fourth Proportional to 18,123.85, 27,199.44 and 8,769.57

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Solution

The fourth proportional to 18,123.85, 27,199.44 and 8,769.57 is: 13,160.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,123.85 : 27,199.44 = 8,769.57 : x
  2. Step 2: Convert to fraction form
    18,123.85/27,199.44 = 8,769.57/x
  3. Step 3: Cross multiply
    18,123.85x = 27,199.44 × 8,769.57
  4. Step 4: Simplify right side
    18,123.85x = 238,527,393.04
  5. Step 5: Solve for x
    x = 238,527,393.04/18,123.85
  6. Step 6: Final answer
    x = 13,160.97

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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.