Home / 13,020.12-19,531.94-4,252.14

Finding the Fourth Proportional to 13,020.12, 19,531.94 and 4,252.14

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Solution

The fourth proportional to 13,020.12, 19,531.94 and 4,252.14 is: 6,378.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.12 : 19,531.94 = 4,252.14 : x
  2. Step 2: Convert to fraction form
    13,020.12/19,531.94 = 4,252.14/x
  3. Step 3: Cross multiply
    13,020.12x = 19,531.94 × 4,252.14
  4. Step 4: Simplify right side
    13,020.12x = 83,052,522.09
  5. Step 5: Solve for x
    x = 83,052,522.09/13,020.12
  6. Step 6: Final answer
    x = 6,378.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.