Home / 13,719.06-18,932.28-7,431.44

Finding the Fourth Proportional to 13,719.06, 18,932.28 and 7,431.44

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Solution

The fourth proportional to 13,719.06, 18,932.28 and 7,431.44 is: 10,255.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.06 : 18,932.28 = 7,431.44 : x
  2. Step 2: Convert to fraction form
    13,719.06/18,932.28 = 7,431.44/x
  3. Step 3: Cross multiply
    13,719.06x = 18,932.28 × 7,431.44
  4. Step 4: Simplify right side
    13,719.06x = 140,694,008.22
  5. Step 5: Solve for x
    x = 140,694,008.22/13,719.06
  6. Step 6: Final answer
    x = 10,255.37

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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.