Home / 18,345.44-25,316.74-9,961.94

Finding the Fourth Proportional to 18,345.44, 25,316.74 and 9,961.94

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Solution

The fourth proportional to 18,345.44, 25,316.74 and 9,961.94 is: 13,747.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,345.44 : 25,316.74 = 9,961.94 : x
  2. Step 2: Convert to fraction form
    18,345.44/25,316.74 = 9,961.94/x
  3. Step 3: Cross multiply
    18,345.44x = 25,316.74 × 9,961.94
  4. Step 4: Simplify right side
    18,345.44x = 252,203,844.88
  5. Step 5: Solve for x
    x = 252,203,844.88/18,345.44
  6. Step 6: Final answer
    x = 13,747.50

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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.