Home / 10,391.96-15,589.32-3,818.24

Finding the Fourth Proportional to 10,391.96, 15,589.32 and 3,818.24

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Solution

The fourth proportional to 10,391.96, 15,589.32 and 3,818.24 is: 5,727.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391.96 : 15,589.32 = 3,818.24 : x
  2. Step 2: Convert to fraction form
    10,391.96/15,589.32 = 3,818.24/x
  3. Step 3: Cross multiply
    10,391.96x = 15,589.32 × 3,818.24
  4. Step 4: Simplify right side
    10,391.96x = 59,523,765.20
  5. Step 5: Solve for x
    x = 59,523,765.20/10,391.96
  6. Step 6: Final answer
    x = 5,727.87

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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.