Home / 12,228-16,875.45-6,850.87

Finding the Fourth Proportional to 12,228, 16,875.45 and 6,850.87

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Solution

The fourth proportional to 12,228, 16,875.45 and 6,850.87 is: 9,454.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,228 : 16,875.45 = 6,850.87 : x
  2. Step 2: Convert to fraction form
    12,228/16,875.45 = 6,850.87/x
  3. Step 3: Cross multiply
    12,228x = 16,875.45 × 6,850.87
  4. Step 4: Simplify right side
    12,228x = 115,611,514.14
  5. Step 5: Solve for x
    x = 115,611,514.14/12,228
  6. Step 6: Final answer
    x = 9,454.65

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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.