Home / 8,720.25-12,037.62-5,891.46

Finding the Fourth Proportional to 8,720.25, 12,037.62 and 5,891.46

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Solution

The fourth proportional to 8,720.25, 12,037.62 and 5,891.46 is: 8,132.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.25 : 12,037.62 = 5,891.46 : x
  2. Step 2: Convert to fraction form
    8,720.25/12,037.62 = 5,891.46/x
  3. Step 3: Cross multiply
    8,720.25x = 12,037.62 × 5,891.46
  4. Step 4: Simplify right side
    8,720.25x = 70,919,156.73
  5. Step 5: Solve for x
    x = 70,919,156.73/8,720.25
  6. Step 6: Final answer
    x = 8,132.70

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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.