Home / 15,424.28-21,285.56-8,350.73

Finding the Fourth Proportional to 15,424.28, 21,285.56 and 8,350.73

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Solution

The fourth proportional to 15,424.28, 21,285.56 and 8,350.73 is: 11,524.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,424.28 : 21,285.56 = 8,350.73 : x
  2. Step 2: Convert to fraction form
    15,424.28/21,285.56 = 8,350.73/x
  3. Step 3: Cross multiply
    15,424.28x = 21,285.56 × 8,350.73
  4. Step 4: Simplify right side
    15,424.28x = 177,749,964.46
  5. Step 5: Solve for x
    x = 177,749,964.46/15,424.28
  6. Step 6: Final answer
    x = 11,524.04

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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.