Home / 13,352.73-20,029.13-12,540.79

Finding the Fourth Proportional to 13,352.73, 20,029.13 and 12,540.79

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Solution

The fourth proportional to 13,352.73, 20,029.13 and 12,540.79 is: 18,811.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,352.73 : 20,029.13 = 12,540.79 : x
  2. Step 2: Convert to fraction form
    13,352.73/20,029.13 = 12,540.79/x
  3. Step 3: Cross multiply
    13,352.73x = 20,029.13 × 12,540.79
  4. Step 4: Simplify right side
    13,352.73x = 251,181,113.21
  5. Step 5: Solve for x
    x = 251,181,113.21/13,352.73
  6. Step 6: Final answer
    x = 18,811.22

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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.