Home / 13,343.66-18,414.96-7,679.27

Finding the Fourth Proportional to 13,343.66, 18,414.96 and 7,679.27

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Solution

The fourth proportional to 13,343.66, 18,414.96 and 7,679.27 is: 10,597.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.66 : 18,414.96 = 7,679.27 : x
  2. Step 2: Convert to fraction form
    13,343.66/18,414.96 = 7,679.27/x
  3. Step 3: Cross multiply
    13,343.66x = 18,414.96 × 7,679.27
  4. Step 4: Simplify right side
    13,343.66x = 141,413,449.88
  5. Step 5: Solve for x
    x = 141,413,449.88/13,343.66
  6. Step 6: Final answer
    x = 10,597.80

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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.