Home / 10,537.80-15,806.53-3,142.29

Finding the Fourth Proportional to 10,537.80, 15,806.53 and 3,142.29

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Solution

The fourth proportional to 10,537.80, 15,806.53 and 3,142.29 is: 4,713.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,537.80 : 15,806.53 = 3,142.29 : x
  2. Step 2: Convert to fraction form
    10,537.80/15,806.53 = 3,142.29/x
  3. Step 3: Cross multiply
    10,537.80x = 15,806.53 × 3,142.29
  4. Step 4: Simplify right side
    10,537.80x = 49,668,701.15
  5. Step 5: Solve for x
    x = 49,668,701.15/10,537.80
  6. Step 6: Final answer
    x = 4,713.38

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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.