Home / 12,086.38-18,123.09-4,294.18

Finding the Fourth Proportional to 12,086.38, 18,123.09 and 4,294.18

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Solution

The fourth proportional to 12,086.38, 18,123.09 and 4,294.18 is: 6,438.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,086.38 : 18,123.09 = 4,294.18 : x
  2. Step 2: Convert to fraction form
    12,086.38/18,123.09 = 4,294.18/x
  3. Step 3: Cross multiply
    12,086.38x = 18,123.09 × 4,294.18
  4. Step 4: Simplify right side
    12,086.38x = 77,823,810.62
  5. Step 5: Solve for x
    x = 77,823,810.62/12,086.38
  6. Step 6: Final answer
    x = 6,438.97

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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.