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Finding the Fourth Proportional to 15,270.96, 22,921.02 and 7,880.52

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Solution

The fourth proportional to 15,270.96, 22,921.02 and 7,880.52 is: 11,828.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,270.96 : 22,921.02 = 7,880.52 : x
  2. Step 2: Convert to fraction form
    15,270.96/22,921.02 = 7,880.52/x
  3. Step 3: Cross multiply
    15,270.96x = 22,921.02 × 7,880.52
  4. Step 4: Simplify right side
    15,270.96x = 180,629,556.53
  5. Step 5: Solve for x
    x = 180,629,556.53/15,270.96
  6. Step 6: Final answer
    x = 11,828.30

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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.