Home / 13,118.88-19,691.26-5,728.44

Finding the Fourth Proportional to 13,118.88, 19,691.26 and 5,728.44

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Solution

The fourth proportional to 13,118.88, 19,691.26 and 5,728.44 is: 8,598.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,118.88 : 19,691.26 = 5,728.44 : x
  2. Step 2: Convert to fraction form
    13,118.88/19,691.26 = 5,728.44/x
  3. Step 3: Cross multiply
    13,118.88x = 19,691.26 × 5,728.44
  4. Step 4: Simplify right side
    13,118.88x = 112,800,201.43
  5. Step 5: Solve for x
    x = 112,800,201.43/13,118.88
  6. Step 6: Final answer
    x = 8,598.31

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1.5x scale

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.