Home / 14,545.36-20,080.20-11,351.80

Finding the Fourth Proportional to 14,545.36, 20,080.20 and 11,351.80

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Solution

The fourth proportional to 14,545.36, 20,080.20 and 11,351.80 is: 15,671.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,545.36 : 20,080.20 = 11,351.80 : x
  2. Step 2: Convert to fraction form
    14,545.36/20,080.20 = 11,351.80/x
  3. Step 3: Cross multiply
    14,545.36x = 20,080.20 × 11,351.80
  4. Step 4: Simplify right side
    14,545.36x = 227,946,414.36
  5. Step 5: Solve for x
    x = 227,946,414.36/14,545.36
  6. Step 6: Final answer
    x = 15,671.42

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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.