Home / 12,447.90-17,181.66-8,202.06

Finding the Fourth Proportional to 12,447.90, 17,181.66 and 8,202.06

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Solution

The fourth proportional to 12,447.90, 17,181.66 and 8,202.06 is: 11,321.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,447.90 : 17,181.66 = 8,202.06 : x
  2. Step 2: Convert to fraction form
    12,447.90/17,181.66 = 8,202.06/x
  3. Step 3: Cross multiply
    12,447.90x = 17,181.66 × 8,202.06
  4. Step 4: Simplify right side
    12,447.90x = 140,925,006.22
  5. Step 5: Solve for x
    x = 140,925,006.22/12,447.90
  6. Step 6: Final answer
    x = 11,321.19

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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.