Home / 12,517.76-18,784.34-5,122.26

Finding the Fourth Proportional to 12,517.76, 18,784.34 and 5,122.26

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Solution

The fourth proportional to 12,517.76, 18,784.34 and 5,122.26 is: 7,686.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,517.76 : 18,784.34 = 5,122.26 : x
  2. Step 2: Convert to fraction form
    12,517.76/18,784.34 = 5,122.26/x
  3. Step 3: Cross multiply
    12,517.76x = 18,784.34 × 5,122.26
  4. Step 4: Simplify right side
    12,517.76x = 96,218,273.41
  5. Step 5: Solve for x
    x = 96,218,273.41/12,517.76
  6. Step 6: Final answer
    x = 7,686.54

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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.