Home / 13,836.82-19,096.95-8,172.18

Finding the Fourth Proportional to 13,836.82, 19,096.95 and 8,172.18

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Solution

The fourth proportional to 13,836.82, 19,096.95 and 8,172.18 is: 11,278.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,836.82 : 19,096.95 = 8,172.18 : x
  2. Step 2: Convert to fraction form
    13,836.82/19,096.95 = 8,172.18/x
  3. Step 3: Cross multiply
    13,836.82x = 19,096.95 × 8,172.18
  4. Step 4: Simplify right side
    13,836.82x = 156,063,712.85
  5. Step 5: Solve for x
    x = 156,063,712.85/13,836.82
  6. Step 6: Final answer
    x = 11,278.87

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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.