Home / 13,419.26-20,116.56-4,648.04

Finding the Fourth Proportional to 13,419.26, 20,116.56 and 4,648.04

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Solution

The fourth proportional to 13,419.26, 20,116.56 and 4,648.04 is: 6,967.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419.26 : 20,116.56 = 4,648.04 : x
  2. Step 2: Convert to fraction form
    13,419.26/20,116.56 = 4,648.04/x
  3. Step 3: Cross multiply
    13,419.26x = 20,116.56 × 4,648.04
  4. Step 4: Simplify right side
    13,419.26x = 93,502,474.96
  5. Step 5: Solve for x
    x = 93,502,474.96/13,419.26
  6. Step 6: Final answer
    x = 6,967.78

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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.