Home / 13,571.11-18,728.15-8,265.95

Finding the Fourth Proportional to 13,571.11, 18,728.15 and 8,265.95

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Solution

The fourth proportional to 13,571.11, 18,728.15 and 8,265.95 is: 11,407.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,571.11 : 18,728.15 = 8,265.95 : x
  2. Step 2: Convert to fraction form
    13,571.11/18,728.15 = 8,265.95/x
  3. Step 3: Cross multiply
    13,571.11x = 18,728.15 × 8,265.95
  4. Step 4: Simplify right side
    13,571.11x = 154,805,886.75
  5. Step 5: Solve for x
    x = 154,805,886.75/13,571.11
  6. Step 6: Final answer
    x = 11,407.02

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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.