Home / 11,864.40-17,791.20-6,316.32

Finding the Fourth Proportional to 11,864.40, 17,791.20 and 6,316.32

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Solution

The fourth proportional to 11,864.40, 17,791.20 and 6,316.32 is: 9,471.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,864.40 : 17,791.20 = 6,316.32 : x
  2. Step 2: Convert to fraction form
    11,864.40/17,791.20 = 6,316.32/x
  3. Step 3: Cross multiply
    11,864.40x = 17,791.20 × 6,316.32
  4. Step 4: Simplify right side
    11,864.40x = 112,374,912.38
  5. Step 5: Solve for x
    x = 112,374,912.38/11,864.40
  6. Step 6: Final answer
    x = 9,471.61

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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.