Home / 10,140.39-15,208.76-2,743.88

Finding the Fourth Proportional to 10,140.39, 15,208.76 and 2,743.88

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Solution

The fourth proportional to 10,140.39, 15,208.76 and 2,743.88 is: 4,115.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.39 : 15,208.76 = 2,743.88 : x
  2. Step 2: Convert to fraction form
    10,140.39/15,208.76 = 2,743.88/x
  3. Step 3: Cross multiply
    10,140.39x = 15,208.76 × 2,743.88
  4. Step 4: Simplify right side
    10,140.39x = 41,730,943.20
  5. Step 5: Solve for x
    x = 41,730,943.20/10,140.39
  6. Step 6: Final answer
    x = 4,115.32

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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.