Home / 13,480.89-20,294.13-12,124.60

Finding the Fourth Proportional to 13,480.89, 20,294.13 and 12,124.60

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Solution

The fourth proportional to 13,480.89, 20,294.13 and 12,124.60 is: 18,252.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480.89 : 20,294.13 = 12,124.60 : x
  2. Step 2: Convert to fraction form
    13,480.89/20,294.13 = 12,124.60/x
  3. Step 3: Cross multiply
    13,480.89x = 20,294.13 × 12,124.60
  4. Step 4: Simplify right side
    13,480.89x = 246,058,046.50
  5. Step 5: Solve for x
    x = 246,058,046.50/13,480.89
  6. Step 6: Final answer
    x = 18,252.37

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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.