Home / 13,367.25-18,447.75-8,061.75

Finding the Fourth Proportional to 13,367.25, 18,447.75 and 8,061.75

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Solution

The fourth proportional to 13,367.25, 18,447.75 and 8,061.75 is: 11,125.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,367.25 : 18,447.75 = 8,061.75 : x
  2. Step 2: Convert to fraction form
    13,367.25/18,447.75 = 8,061.75/x
  3. Step 3: Cross multiply
    13,367.25x = 18,447.75 × 8,061.75
  4. Step 4: Simplify right side
    13,367.25x = 148,721,148.56
  5. Step 5: Solve for x
    x = 148,721,148.56/13,367.25
  6. Step 6: Final answer
    x = 11,125.78

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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.