Home / 14,711.49-20,284.97-11,168.55

Finding the Fourth Proportional to 14,711.49, 20,284.97 and 11,168.55

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Solution

The fourth proportional to 14,711.49, 20,284.97 and 11,168.55 is: 15,399.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,711.49 : 20,284.97 = 11,168.55 : x
  2. Step 2: Convert to fraction form
    14,711.49/20,284.97 = 11,168.55/x
  3. Step 3: Cross multiply
    14,711.49x = 20,284.97 × 11,168.55
  4. Step 4: Simplify right side
    14,711.49x = 226,553,645.85
  5. Step 5: Solve for x
    x = 226,553,645.85/14,711.49
  6. Step 6: Final answer
    x = 15,399.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.