Home / 10,979.92-16,472.32-3,188.16

Finding the Fourth Proportional to 10,979.92, 16,472.32 and 3,188.16

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Solution

The fourth proportional to 10,979.92, 16,472.32 and 3,188.16 is: 4,782.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.92 : 16,472.32 = 3,188.16 : x
  2. Step 2: Convert to fraction form
    10,979.92/16,472.32 = 3,188.16/x
  3. Step 3: Cross multiply
    10,979.92x = 16,472.32 × 3,188.16
  4. Step 4: Simplify right side
    10,979.92x = 52,516,391.73
  5. Step 5: Solve for x
    x = 52,516,391.73/10,979.92
  6. Step 6: Final answer
    x = 4,782.95

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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.