Home / 15,135.26-22,708.35-7,743.20

Finding the Fourth Proportional to 15,135.26, 22,708.35 and 7,743.20

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Solution

The fourth proportional to 15,135.26, 22,708.35 and 7,743.20 is: 11,617.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,135.26 : 22,708.35 = 7,743.20 : x
  2. Step 2: Convert to fraction form
    15,135.26/22,708.35 = 7,743.20/x
  3. Step 3: Cross multiply
    15,135.26x = 22,708.35 × 7,743.20
  4. Step 4: Simplify right side
    15,135.26x = 175,835,182.18
  5. Step 5: Solve for x
    x = 175,835,182.18/15,135.26
  6. Step 6: Final answer
    x = 11,617.59

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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.