Home / 16,289.28-22,480.56-9,217.92

Finding the Fourth Proportional to 16,289.28, 22,480.56 and 9,217.92

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Solution

The fourth proportional to 16,289.28, 22,480.56 and 9,217.92 is: 12,721.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,289.28 : 22,480.56 = 9,217.92 : x
  2. Step 2: Convert to fraction form
    16,289.28/22,480.56 = 9,217.92/x
  3. Step 3: Cross multiply
    16,289.28x = 22,480.56 × 9,217.92
  4. Step 4: Simplify right side
    16,289.28x = 207,224,003.64
  5. Step 5: Solve for x
    x = 207,224,003.64/16,289.28
  6. Step 6: Final answer
    x = 12,721.50

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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.