Home / 13,372.35-18,456.03-7,994.90

Finding the Fourth Proportional to 13,372.35, 18,456.03 and 7,994.90

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Solution

The fourth proportional to 13,372.35, 18,456.03 and 7,994.90 is: 11,034.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.35 : 18,456.03 = 7,994.90 : x
  2. Step 2: Convert to fraction form
    13,372.35/18,456.03 = 7,994.90/x
  3. Step 3: Cross multiply
    13,372.35x = 18,456.03 × 7,994.90
  4. Step 4: Simplify right side
    13,372.35x = 147,554,021.97
  5. Step 5: Solve for x
    x = 147,554,021.97/13,372.35
  6. Step 6: Final answer
    x = 11,034.26

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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.