Home / 13,449.26-18,560.80-8,144.58

Finding the Fourth Proportional to 13,449.26, 18,560.80 and 8,144.58

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Solution

The fourth proportional to 13,449.26, 18,560.80 and 8,144.58 is: 11,240.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,449.26 : 18,560.80 = 8,144.58 : x
  2. Step 2: Convert to fraction form
    13,449.26/18,560.80 = 8,144.58/x
  3. Step 3: Cross multiply
    13,449.26x = 18,560.80 × 8,144.58
  4. Step 4: Simplify right side
    13,449.26x = 151,169,920.46
  5. Step 5: Solve for x
    x = 151,169,920.46/13,449.26
  6. Step 6: Final answer
    x = 11,240.02

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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.