Home / 14,711.17-20,300.92-8,422.33

Finding the Fourth Proportional to 14,711.17, 20,300.92 and 8,422.33

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Solution

The fourth proportional to 14,711.17, 20,300.92 and 8,422.33 is: 11,622.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,711.17 : 20,300.92 = 8,422.33 : x
  2. Step 2: Convert to fraction form
    14,711.17/20,300.92 = 8,422.33/x
  3. Step 3: Cross multiply
    14,711.17x = 20,300.92 × 8,422.33
  4. Step 4: Simplify right side
    14,711.17x = 170,981,047.54
  5. Step 5: Solve for x
    x = 170,981,047.54/14,711.17
  6. Step 6: Final answer
    x = 11,622.53

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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.