Home / 8,108.24-11,172.84-5,591.12

Finding the Fourth Proportional to 8,108.24, 11,172.84 and 5,591.12

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Solution

The fourth proportional to 8,108.24, 11,172.84 and 5,591.12 is: 7,704.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.24 : 11,172.84 = 5,591.12 : x
  2. Step 2: Convert to fraction form
    8,108.24/11,172.84 = 5,591.12/x
  3. Step 3: Cross multiply
    8,108.24x = 11,172.84 × 5,591.12
  4. Step 4: Simplify right side
    8,108.24x = 62,468,689.18
  5. Step 5: Solve for x
    x = 62,468,689.18/8,108.24
  6. Step 6: Final answer
    x = 7,704.35

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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.