Home / 10,539.24-15,811.66-3,143.72

Finding the Fourth Proportional to 10,539.24, 15,811.66 and 3,143.72

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Solution

The fourth proportional to 10,539.24, 15,811.66 and 3,143.72 is: 4,716.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,539.24 : 15,811.66 = 3,143.72 : x
  2. Step 2: Convert to fraction form
    10,539.24/15,811.66 = 3,143.72/x
  3. Step 3: Cross multiply
    10,539.24x = 15,811.66 × 3,143.72
  4. Step 4: Simplify right side
    10,539.24x = 49,707,431.78
  5. Step 5: Solve for x
    x = 49,707,431.78/10,539.24
  6. Step 6: Final answer
    x = 4,716.42

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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.