Home / 15,012.81-22,511.52-5,149.44

Finding the Fourth Proportional to 15,012.81, 22,511.52 and 5,149.44

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Solution

The fourth proportional to 15,012.81, 22,511.52 and 5,149.44 is: 7,721.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,012.81 : 22,511.52 = 5,149.44 : x
  2. Step 2: Convert to fraction form
    15,012.81/22,511.52 = 5,149.44/x
  3. Step 3: Cross multiply
    15,012.81x = 22,511.52 × 5,149.44
  4. Step 4: Simplify right side
    15,012.81x = 115,921,721.55
  5. Step 5: Solve for x
    x = 115,921,721.55/15,012.81
  6. Step 6: Final answer
    x = 7,721.52

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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.