Home / 13,419.08-18,517.97-8,044.55

Finding the Fourth Proportional to 13,419.08, 18,517.97 and 8,044.55

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Solution

The fourth proportional to 13,419.08, 18,517.97 and 8,044.55 is: 11,101.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419.08 : 18,517.97 = 8,044.55 : x
  2. Step 2: Convert to fraction form
    13,419.08/18,517.97 = 8,044.55/x
  3. Step 3: Cross multiply
    13,419.08x = 18,517.97 × 8,044.55
  4. Step 4: Simplify right side
    13,419.08x = 148,968,602.75
  5. Step 5: Solve for x
    x = 148,968,602.75/13,419.08
  6. Step 6: Final answer
    x = 11,101.26

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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.