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Finding the Fourth Proportional to 15,500, 23,260.24 and 7,292.64

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Solution

The fourth proportional to 15,500, 23,260.24 and 7,292.64 is: 10,943.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,500 : 23,260.24 = 7,292.64 : x
  2. Step 2: Convert to fraction form
    15,500/23,260.24 = 7,292.64/x
  3. Step 3: Cross multiply
    15,500x = 23,260.24 × 7,292.64
  4. Step 4: Simplify right side
    15,500x = 169,628,556.63
  5. Step 5: Solve for x
    x = 169,628,556.63/15,500
  6. Step 6: Final answer
    x = 10,943.78

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1.5x scale

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.