Home / 26,912.72-40,373.78-9,141.53

Finding the Fourth Proportional to 26,912.72, 40,373.78 and 9,141.53

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Solution

The fourth proportional to 26,912.72, 40,373.78 and 9,141.53 is: 13,713.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,912.72 : 40,373.78 = 9,141.53 : x
  2. Step 2: Convert to fraction form
    26,912.72/40,373.78 = 9,141.53/x
  3. Step 3: Cross multiply
    26,912.72x = 40,373.78 × 9,141.53
  4. Step 4: Simplify right side
    26,912.72x = 369,077,873.51
  5. Step 5: Solve for x
    x = 369,077,873.51/26,912.72
  6. Step 6: Final answer
    x = 13,713.88

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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.