Home / 15,983.28-22,057.68-8,909.76

Finding the Fourth Proportional to 15,983.28, 22,057.68 and 8,909.76

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Solution

The fourth proportional to 15,983.28, 22,057.68 and 8,909.76 is: 12,295.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,983.28 : 22,057.68 = 8,909.76 : x
  2. Step 2: Convert to fraction form
    15,983.28/22,057.68 = 8,909.76/x
  3. Step 3: Cross multiply
    15,983.28x = 22,057.68 × 8,909.76
  4. Step 4: Simplify right side
    15,983.28x = 196,528,634.96
  5. Step 5: Solve for x
    x = 196,528,634.96/15,983.28
  6. Step 6: Final answer
    x = 12,295.89

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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.