Home / 13,134.52-18,104.18-9,148.71

Finding the Fourth Proportional to 13,134.52, 18,104.18 and 9,148.71

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Solution

The fourth proportional to 13,134.52, 18,104.18 and 9,148.71 is: 12,610.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,134.52 : 18,104.18 = 9,148.71 : x
  2. Step 2: Convert to fraction form
    13,134.52/18,104.18 = 9,148.71/x
  3. Step 3: Cross multiply
    13,134.52x = 18,104.18 × 9,148.71
  4. Step 4: Simplify right side
    13,134.52x = 165,629,914.75
  5. Step 5: Solve for x
    x = 165,629,914.75/13,134.52
  6. Step 6: Final answer
    x = 12,610.27

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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.