Home / 13,244.85-18,255.94-12,894.28

Finding the Fourth Proportional to 13,244.85, 18,255.94 and 12,894.28

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Solution

The fourth proportional to 13,244.85, 18,255.94 and 12,894.28 is: 17,772.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,244.85 : 18,255.94 = 12,894.28 : x
  2. Step 2: Convert to fraction form
    13,244.85/18,255.94 = 12,894.28/x
  3. Step 3: Cross multiply
    13,244.85x = 18,255.94 × 12,894.28
  4. Step 4: Simplify right side
    13,244.85x = 235,397,202.02
  5. Step 5: Solve for x
    x = 235,397,202.02/13,244.85
  6. Step 6: Final answer
    x = 17,772.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.