Home / 13,900.20-19,185.24-8,863.20

Finding the Fourth Proportional to 13,900.20, 19,185.24 and 8,863.20

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Solution

The fourth proportional to 13,900.20, 19,185.24 and 8,863.20 is: 12,233.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.20 : 19,185.24 = 8,863.20 : x
  2. Step 2: Convert to fraction form
    13,900.20/19,185.24 = 8,863.20/x
  3. Step 3: Cross multiply
    13,900.20x = 19,185.24 × 8,863.20
  4. Step 4: Simplify right side
    13,900.20x = 170,042,619.17
  5. Step 5: Solve for x
    x = 170,042,619.17/13,900.20
  6. Step 6: Final answer
    x = 12,233.11

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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.