Home / 18,345.24-25,316.64-9,961.92

Finding the Fourth Proportional to 18,345.24, 25,316.64 and 9,961.92

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Solution

The fourth proportional to 18,345.24, 25,316.64 and 9,961.92 is: 13,747.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,345.24 : 25,316.64 = 9,961.92 : x
  2. Step 2: Convert to fraction form
    18,345.24/25,316.64 = 9,961.92/x
  3. Step 3: Cross multiply
    18,345.24x = 25,316.64 × 9,961.92
  4. Step 4: Simplify right side
    18,345.24x = 252,202,342.35
  5. Step 5: Solve for x
    x = 252,202,342.35/18,345.24
  6. Step 6: Final answer
    x = 13,747.56

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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.