Home / 13,343.43-18,414.89-7,374.97

Finding the Fourth Proportional to 13,343.43, 18,414.89 and 7,374.97

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Solution

The fourth proportional to 13,343.43, 18,414.89 and 7,374.97 is: 10,177.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.43 : 18,414.89 = 7,374.97 : x
  2. Step 2: Convert to fraction form
    13,343.43/18,414.89 = 7,374.97/x
  3. Step 3: Cross multiply
    13,343.43x = 18,414.89 × 7,374.97
  4. Step 4: Simplify right side
    13,343.43x = 135,809,307.34
  5. Step 5: Solve for x
    x = 135,809,307.34/13,343.43
  6. Step 6: Final answer
    x = 10,177.99

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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.