Home / 13,175.38-18,181.77-7,207.03

Finding the Fourth Proportional to 13,175.38, 18,181.77 and 7,207.03

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Solution

The fourth proportional to 13,175.38, 18,181.77 and 7,207.03 is: 9,945.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,175.38 : 18,181.77 = 7,207.03 : x
  2. Step 2: Convert to fraction form
    13,175.38/18,181.77 = 7,207.03/x
  3. Step 3: Cross multiply
    13,175.38x = 18,181.77 × 7,207.03
  4. Step 4: Simplify right side
    13,175.38x = 131,036,561.84
  5. Step 5: Solve for x
    x = 131,036,561.84/13,175.38
  6. Step 6: Final answer
    x = 9,945.56

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Half scale
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Double scale
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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.