Home / 18,377.40-27,578.58-12,123.96

Finding the Fourth Proportional to 18,377.40, 27,578.58 and 12,123.96

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Solution

The fourth proportional to 18,377.40, 27,578.58 and 12,123.96 is: 18,194.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,377.40 : 27,578.58 = 12,123.96 : x
  2. Step 2: Convert to fraction form
    18,377.40/27,578.58 = 12,123.96/x
  3. Step 3: Cross multiply
    18,377.40x = 27,578.58 × 12,123.96
  4. Step 4: Simplify right side
    18,377.40x = 334,361,600.78
  5. Step 5: Solve for x
    x = 334,361,600.78/18,377.40
  6. Step 6: Final answer
    x = 18,194.17

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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.