Home / 13,908.62-20,738.87-12,363.14

Finding the Fourth Proportional to 13,908.62, 20,738.87 and 12,363.14

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Solution

The fourth proportional to 13,908.62, 20,738.87 and 12,363.14 is: 18,434.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,908.62 : 20,738.87 = 12,363.14 : x
  2. Step 2: Convert to fraction form
    13,908.62/20,738.87 = 12,363.14/x
  3. Step 3: Cross multiply
    13,908.62x = 20,738.87 × 12,363.14
  4. Step 4: Simplify right side
    13,908.62x = 256,397,387.74
  5. Step 5: Solve for x
    x = 256,397,387.74/13,908.62
  6. Step 6: Final answer
    x = 18,434.43

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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.