Home / 12,517.54-18,782.78-5,502.48

Finding the Fourth Proportional to 12,517.54, 18,782.78 and 5,502.48

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Solution

The fourth proportional to 12,517.54, 18,782.78 and 5,502.48 is: 8,256.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,517.54 : 18,782.78 = 5,502.48 : x
  2. Step 2: Convert to fraction form
    12,517.54/18,782.78 = 5,502.48/x
  3. Step 3: Cross multiply
    12,517.54x = 18,782.78 × 5,502.48
  4. Step 4: Simplify right side
    12,517.54x = 103,351,871.29
  5. Step 5: Solve for x
    x = 103,351,871.29/12,517.54
  6. Step 6: Final answer
    x = 8,256.56

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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.