Home / 13,278.66-18,326.32-8,576.62

Finding the Fourth Proportional to 13,278.66, 18,326.32 and 8,576.62

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Solution

The fourth proportional to 13,278.66, 18,326.32 and 8,576.62 is: 11,836.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.66 : 18,326.32 = 8,576.62 : x
  2. Step 2: Convert to fraction form
    13,278.66/18,326.32 = 8,576.62/x
  3. Step 3: Cross multiply
    13,278.66x = 18,326.32 × 8,576.62
  4. Step 4: Simplify right side
    13,278.66x = 157,177,882.64
  5. Step 5: Solve for x
    x = 157,177,882.64/13,278.66
  6. Step 6: Final answer
    x = 11,836.88

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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.