Home / 8,089.73-12,115.45-5,159.15

Finding the Fourth Proportional to 8,089.73, 12,115.45 and 5,159.15

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Solution

The fourth proportional to 8,089.73, 12,115.45 and 5,159.15 is: 7,726.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,089.73 : 12,115.45 = 5,159.15 : x
  2. Step 2: Convert to fraction form
    8,089.73/12,115.45 = 5,159.15/x
  3. Step 3: Cross multiply
    8,089.73x = 12,115.45 × 5,159.15
  4. Step 4: Simplify right side
    8,089.73x = 62,505,423.87
  5. Step 5: Solve for x
    x = 62,505,423.87/8,089.73
  6. Step 6: Final answer
    x = 7,726.52

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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.