Home / 18,375.96-25,358.70-9,992.46

Finding the Fourth Proportional to 18,375.96, 25,358.70 and 9,992.46

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Solution

The fourth proportional to 18,375.96, 25,358.70 and 9,992.46 is: 13,789.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,375.96 : 25,358.70 = 9,992.46 : x
  2. Step 2: Convert to fraction form
    18,375.96/25,358.70 = 9,992.46/x
  3. Step 3: Cross multiply
    18,375.96x = 25,358.70 × 9,992.46
  4. Step 4: Simplify right side
    18,375.96x = 253,395,795.40
  5. Step 5: Solve for x
    x = 253,395,795.40/18,375.96
  6. Step 6: Final answer
    x = 13,789.53

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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.