Home / 12,540.42-18,883.92-9,276.54

Finding the Fourth Proportional to 12,540.42, 18,883.92 and 9,276.54

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Solution

The fourth proportional to 12,540.42, 18,883.92 and 9,276.54 is: 13,969.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540.42 : 18,883.92 = 9,276.54 : x
  2. Step 2: Convert to fraction form
    12,540.42/18,883.92 = 9,276.54/x
  3. Step 3: Cross multiply
    12,540.42x = 18,883.92 × 9,276.54
  4. Step 4: Simplify right side
    12,540.42x = 175,177,439.24
  5. Step 5: Solve for x
    x = 175,177,439.24/12,540.42
  6. Step 6: Final answer
    x = 13,969.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.