Home / 8,191.88-12,280.44-5,560.28

Finding the Fourth Proportional to 8,191.88, 12,280.44 and 5,560.28

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Solution

The fourth proportional to 8,191.88, 12,280.44 and 5,560.28 is: 8,335.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,191.88 : 12,280.44 = 5,560.28 : x
  2. Step 2: Convert to fraction form
    8,191.88/12,280.44 = 5,560.28/x
  3. Step 3: Cross multiply
    8,191.88x = 12,280.44 × 5,560.28
  4. Step 4: Simplify right side
    8,191.88x = 68,282,684.92
  5. Step 5: Solve for x
    x = 68,282,684.92/8,191.88
  6. Step 6: Final answer
    x = 8,335.41

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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.