Home / 12,217.15-16,873.48-8,231.34

Finding the Fourth Proportional to 12,217.15, 16,873.48 and 8,231.34

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Solution

The fourth proportional to 12,217.15, 16,873.48 and 8,231.34 is: 11,368.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.15 : 16,873.48 = 8,231.34 : x
  2. Step 2: Convert to fraction form
    12,217.15/16,873.48 = 8,231.34/x
  3. Step 3: Cross multiply
    12,217.15x = 16,873.48 × 8,231.34
  4. Step 4: Simplify right side
    12,217.15x = 138,891,424.43
  5. Step 5: Solve for x
    x = 138,891,424.43/12,217.15
  6. Step 6: Final answer
    x = 11,368.56

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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.