Home / 8,480.16-12,715.92-5,711.04

Finding the Fourth Proportional to 8,480.16, 12,715.92 and 5,711.04

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Solution

The fourth proportional to 8,480.16, 12,715.92 and 5,711.04 is: 8,563.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,480.16 : 12,715.92 = 5,711.04 : x
  2. Step 2: Convert to fraction form
    8,480.16/12,715.92 = 5,711.04/x
  3. Step 3: Cross multiply
    8,480.16x = 12,715.92 × 5,711.04
  4. Step 4: Simplify right side
    8,480.16x = 72,621,127.76
  5. Step 5: Solve for x
    x = 72,621,127.76/8,480.16
  6. Step 6: Final answer
    x = 8,563.65

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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.