Home / 13,274.91-18,309.15-8,242.11

Finding the Fourth Proportional to 13,274.91, 18,309.15 and 8,242.11

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Solution

The fourth proportional to 13,274.91, 18,309.15 and 8,242.11 is: 11,367.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.91 : 18,309.15 = 8,242.11 : x
  2. Step 2: Convert to fraction form
    13,274.91/18,309.15 = 8,242.11/x
  3. Step 3: Cross multiply
    13,274.91x = 18,309.15 × 8,242.11
  4. Step 4: Simplify right side
    13,274.91x = 150,906,028.31
  5. Step 5: Solve for x
    x = 150,906,028.31/13,274.91
  6. Step 6: Final answer
    x = 11,367.76

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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.