Home / 13,912.18-20,744.17-12,366.70

Finding the Fourth Proportional to 13,912.18, 20,744.17 and 12,366.70

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Solution

The fourth proportional to 13,912.18, 20,744.17 and 12,366.70 is: 18,439.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.18 : 20,744.17 = 12,366.70 : x
  2. Step 2: Convert to fraction form
    13,912.18/20,744.17 = 12,366.70/x
  3. Step 3: Cross multiply
    13,912.18x = 20,744.17 × 12,366.70
  4. Step 4: Simplify right side
    13,912.18x = 256,536,844.36
  5. Step 5: Solve for x
    x = 256,536,844.36/13,912.18
  6. Step 6: Final answer
    x = 18,439.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.