Home / 10,218.20-15,324.42-4,381.16

Finding the Fourth Proportional to 10,218.20, 15,324.42 and 4,381.16

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Solution

The fourth proportional to 10,218.20, 15,324.42 and 4,381.16 is: 6,570.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,218.20 : 15,324.42 = 4,381.16 : x
  2. Step 2: Convert to fraction form
    10,218.20/15,324.42 = 4,381.16/x
  3. Step 3: Cross multiply
    10,218.20x = 15,324.42 × 4,381.16
  4. Step 4: Simplify right side
    10,218.20x = 67,138,735.93
  5. Step 5: Solve for x
    x = 67,138,735.93/10,218.20
  6. Step 6: Final answer
    x = 6,570.51

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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.