Home / 18,129.47-27,194.60-10,321.88

Finding the Fourth Proportional to 18,129.47, 27,194.60 and 10,321.88

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Solution

The fourth proportional to 18,129.47, 27,194.60 and 10,321.88 is: 15,483.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.47 : 27,194.60 = 10,321.88 : x
  2. Step 2: Convert to fraction form
    18,129.47/27,194.60 = 10,321.88/x
  3. Step 3: Cross multiply
    18,129.47x = 27,194.60 × 10,321.88
  4. Step 4: Simplify right side
    18,129.47x = 280,699,287.68
  5. Step 5: Solve for x
    x = 280,699,287.68/18,129.47
  6. Step 6: Final answer
    x = 15,483.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.