Home / 13,943.78-19,233.97-8,274.80

Finding the Fourth Proportional to 13,943.78, 19,233.97 and 8,274.80

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Solution

The fourth proportional to 13,943.78, 19,233.97 and 8,274.80 is: 11,414.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.78 : 19,233.97 = 8,274.80 : x
  2. Step 2: Convert to fraction form
    13,943.78/19,233.97 = 8,274.80/x
  3. Step 3: Cross multiply
    13,943.78x = 19,233.97 × 8,274.80
  4. Step 4: Simplify right side
    13,943.78x = 159,157,254.96
  5. Step 5: Solve for x
    x = 159,157,254.96/13,943.78
  6. Step 6: Final answer
    x = 11,414.21

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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.