Home / 13,242.52-19,863.79-3,381.45

Finding the Fourth Proportional to 13,242.52, 19,863.79 and 3,381.45

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Solution

The fourth proportional to 13,242.52, 19,863.79 and 3,381.45 is: 5,072.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.52 : 19,863.79 = 3,381.45 : x
  2. Step 2: Convert to fraction form
    13,242.52/19,863.79 = 3,381.45/x
  3. Step 3: Cross multiply
    13,242.52x = 19,863.79 × 3,381.45
  4. Step 4: Simplify right side
    13,242.52x = 67,168,412.70
  5. Step 5: Solve for x
    x = 67,168,412.70/13,242.52
  6. Step 6: Final answer
    x = 5,072.18

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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.