Home / 18,125.28-27,180.66-5,641.20

Finding the Fourth Proportional to 18,125.28, 27,180.66 and 5,641.20

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Solution

The fourth proportional to 18,125.28, 27,180.66 and 5,641.20 is: 8,459.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,125.28 : 27,180.66 = 5,641.20 : x
  2. Step 2: Convert to fraction form
    18,125.28/27,180.66 = 5,641.20/x
  3. Step 3: Cross multiply
    18,125.28x = 27,180.66 × 5,641.20
  4. Step 4: Simplify right side
    18,125.28x = 153,331,539.19
  5. Step 5: Solve for x
    x = 153,331,539.19/18,125.28
  6. Step 6: Final answer
    x = 8,459.54

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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.