Home / 18,127.68-27,180.48-8,275.20

Finding the Fourth Proportional to 18,127.68, 27,180.48 and 8,275.20

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Solution

The fourth proportional to 18,127.68, 27,180.48 and 8,275.20 is: 12,407.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,127.68 : 27,180.48 = 8,275.20 : x
  2. Step 2: Convert to fraction form
    18,127.68/27,180.48 = 8,275.20/x
  3. Step 3: Cross multiply
    18,127.68x = 27,180.48 × 8,275.20
  4. Step 4: Simplify right side
    18,127.68x = 224,923,908.10
  5. Step 5: Solve for x
    x = 224,923,908.10/18,127.68
  6. Step 6: Final answer
    x = 12,407.76

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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.