Home / 9,191.04-13,724.28-7,998.72

Finding the Fourth Proportional to 9,191.04, 13,724.28 and 7,998.72

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Solution

The fourth proportional to 9,191.04, 13,724.28 and 7,998.72 is: 11,943.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,191.04 : 13,724.28 = 7,998.72 : x
  2. Step 2: Convert to fraction form
    9,191.04/13,724.28 = 7,998.72/x
  3. Step 3: Cross multiply
    9,191.04x = 13,724.28 × 7,998.72
  4. Step 4: Simplify right side
    9,191.04x = 109,776,672.92
  5. Step 5: Solve for x
    x = 109,776,672.92/9,191.04
  6. Step 6: Final answer
    x = 11,943.88

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.