Home / 13,326.56-18,391.20-8,293.76

Finding the Fourth Proportional to 13,326.56, 18,391.20 and 8,293.76

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Solution

The fourth proportional to 13,326.56, 18,391.20 and 8,293.76 is: 11,445.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.56 : 18,391.20 = 8,293.76 : x
  2. Step 2: Convert to fraction form
    13,326.56/18,391.20 = 8,293.76/x
  3. Step 3: Cross multiply
    13,326.56x = 18,391.20 × 8,293.76
  4. Step 4: Simplify right side
    13,326.56x = 152,532,198.91
  5. Step 5: Solve for x
    x = 152,532,198.91/13,326.56
  6. Step 6: Final answer
    x = 11,445.73

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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.