Home / 10,139.25-15,208.81-2,744.47

Finding the Fourth Proportional to 10,139.25, 15,208.81 and 2,744.47

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Solution

The fourth proportional to 10,139.25, 15,208.81 and 2,744.47 is: 4,116.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,139.25 : 15,208.81 = 2,744.47 : x
  2. Step 2: Convert to fraction form
    10,139.25/15,208.81 = 2,744.47/x
  3. Step 3: Cross multiply
    10,139.25x = 15,208.81 × 2,744.47
  4. Step 4: Simplify right side
    10,139.25x = 41,740,077.90
  5. Step 5: Solve for x
    x = 41,740,077.90/10,139.25
  6. Step 6: Final answer
    x = 4,116.68

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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.