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Finding the Fourth Proportional to 10,873.62, 15,012.82 and 8,351.22

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Solution

The fourth proportional to 10,873.62, 15,012.82 and 8,351.22 is: 11,530.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,873.62 : 15,012.82 = 8,351.22 : x
  2. Step 2: Convert to fraction form
    10,873.62/15,012.82 = 8,351.22/x
  3. Step 3: Cross multiply
    10,873.62x = 15,012.82 × 8,351.22
  4. Step 4: Simplify right side
    10,873.62x = 125,375,450.26
  5. Step 5: Solve for x
    x = 125,375,450.26/10,873.62
  6. Step 6: Final answer
    x = 11,530.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.