Home / 12,727.12-17,560.38-7,418.92

Finding the Fourth Proportional to 12,727.12, 17,560.38 and 7,418.92

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Solution

The fourth proportional to 12,727.12, 17,560.38 and 7,418.92 is: 10,236.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,727.12 : 17,560.38 = 7,418.92 : x
  2. Step 2: Convert to fraction form
    12,727.12/17,560.38 = 7,418.92/x
  3. Step 3: Cross multiply
    12,727.12x = 17,560.38 × 7,418.92
  4. Step 4: Simplify right side
    12,727.12x = 130,279,054.39
  5. Step 5: Solve for x
    x = 130,279,054.39/12,727.12
  6. Step 6: Final answer
    x = 10,236.33

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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.