Home / 12,577.45-17,355.87-7,272.61

Finding the Fourth Proportional to 12,577.45, 17,355.87 and 7,272.61

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Solution

The fourth proportional to 12,577.45, 17,355.87 and 7,272.61 is: 10,035.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.45 : 17,355.87 = 7,272.61 : x
  2. Step 2: Convert to fraction form
    12,577.45/17,355.87 = 7,272.61/x
  3. Step 3: Cross multiply
    12,577.45x = 17,355.87 × 7,272.61
  4. Step 4: Simplify right side
    12,577.45x = 126,222,350.58
  5. Step 5: Solve for x
    x = 126,222,350.58/12,577.45
  6. Step 6: Final answer
    x = 10,035.61

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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.