Home / 12,228.32-16,874.16-6,921.92

Finding the Fourth Proportional to 12,228.32, 16,874.16 and 6,921.92

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Solution

The fourth proportional to 12,228.32, 16,874.16 and 6,921.92 is: 9,551.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,228.32 : 16,874.16 = 6,921.92 : x
  2. Step 2: Convert to fraction form
    12,228.32/16,874.16 = 6,921.92/x
  3. Step 3: Cross multiply
    12,228.32x = 16,874.16 × 6,921.92
  4. Step 4: Simplify right side
    12,228.32x = 116,801,585.59
  5. Step 5: Solve for x
    x = 116,801,585.59/12,228.32
  6. Step 6: Final answer
    x = 9,551.73

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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.