Home / 11,543.43-17,278.86-7,964.61

Finding the Fourth Proportional to 11,543.43, 17,278.86 and 7,964.61

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Solution

The fourth proportional to 11,543.43, 17,278.86 and 7,964.61 is: 11,921.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,543.43 : 17,278.86 = 7,964.61 : x
  2. Step 2: Convert to fraction form
    11,543.43/17,278.86 = 7,964.61/x
  3. Step 3: Cross multiply
    11,543.43x = 17,278.86 × 7,964.61
  4. Step 4: Simplify right side
    11,543.43x = 137,619,381.14
  5. Step 5: Solve for x
    x = 137,619,381.14/11,543.43
  6. Step 6: Final answer
    x = 11,921.88

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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.