Home / 10,724.40-16,082.28-4,480.32

Finding the Fourth Proportional to 10,724.40, 16,082.28 and 4,480.32

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Solution

The fourth proportional to 10,724.40, 16,082.28 and 4,480.32 is: 6,718.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,724.40 : 16,082.28 = 4,480.32 : x
  2. Step 2: Convert to fraction form
    10,724.40/16,082.28 = 4,480.32/x
  3. Step 3: Cross multiply
    10,724.40x = 16,082.28 × 4,480.32
  4. Step 4: Simplify right side
    10,724.40x = 72,053,760.73
  5. Step 5: Solve for x
    x = 72,053,760.73/10,724.40
  6. Step 6: Final answer
    x = 6,718.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.