Home / 13,824.88-19,072.16-8,517.76

Finding the Fourth Proportional to 13,824.88, 19,072.16 and 8,517.76

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Solution

The fourth proportional to 13,824.88, 19,072.16 and 8,517.76 is: 11,750.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.88 : 19,072.16 = 8,517.76 : x
  2. Step 2: Convert to fraction form
    13,824.88/19,072.16 = 8,517.76/x
  3. Step 3: Cross multiply
    13,824.88x = 19,072.16 × 8,517.76
  4. Step 4: Simplify right side
    13,824.88x = 162,452,081.56
  5. Step 5: Solve for x
    x = 162,452,081.56/13,824.88
  6. Step 6: Final answer
    x = 11,750.70

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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.