Home / 18,120.28-27,182.96-5,641.22

Finding the Fourth Proportional to 18,120.28, 27,182.96 and 5,641.22

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Solution

The fourth proportional to 18,120.28, 27,182.96 and 5,641.22 is: 8,462.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,120.28 : 27,182.96 = 5,641.22 : x
  2. Step 2: Convert to fraction form
    18,120.28/27,182.96 = 5,641.22/x
  3. Step 3: Cross multiply
    18,120.28x = 27,182.96 × 5,641.22
  4. Step 4: Simplify right side
    18,120.28x = 153,345,057.61
  5. Step 5: Solve for x
    x = 153,345,057.61/18,120.28
  6. Step 6: Final answer
    x = 8,462.62

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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.