Home / 13,175.64-18,181.96-7,207.16

Finding the Fourth Proportional to 13,175.64, 18,181.96 and 7,207.16

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Solution

The fourth proportional to 13,175.64, 18,181.96 and 7,207.16 is: 9,945.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,175.64 : 18,181.96 = 7,207.16 : x
  2. Step 2: Convert to fraction form
    13,175.64/18,181.96 = 7,207.16/x
  3. Step 3: Cross multiply
    13,175.64x = 18,181.96 × 7,207.16
  4. Step 4: Simplify right side
    13,175.64x = 131,040,185.91
  5. Step 5: Solve for x
    x = 131,040,185.91/13,175.64
  6. Step 6: Final answer
    x = 9,945.64

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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.