Home / 10,539.47-15,811.49-3,144.53

Finding the Fourth Proportional to 10,539.47, 15,811.49 and 3,144.53

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Solution

The fourth proportional to 10,539.47, 15,811.49 and 3,144.53 is: 4,717.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,539.47 : 15,811.49 = 3,144.53 : x
  2. Step 2: Convert to fraction form
    10,539.47/15,811.49 = 3,144.53/x
  3. Step 3: Cross multiply
    10,539.47x = 15,811.49 × 3,144.53
  4. Step 4: Simplify right side
    10,539.47x = 49,719,704.65
  5. Step 5: Solve for x
    x = 49,719,704.65/10,539.47
  6. Step 6: Final answer
    x = 4,717.48

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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.