Home / 12,072.62-16,659.90-6,767.78

Finding the Fourth Proportional to 12,072.62, 16,659.90 and 6,767.78

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Solution

The fourth proportional to 12,072.62, 16,659.90 and 6,767.78 is: 9,339.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072.62 : 16,659.90 = 6,767.78 : x
  2. Step 2: Convert to fraction form
    12,072.62/16,659.90 = 6,767.78/x
  3. Step 3: Cross multiply
    12,072.62x = 16,659.90 × 6,767.78
  4. Step 4: Simplify right side
    12,072.62x = 112,750,538.02
  5. Step 5: Solve for x
    x = 112,750,538.02/12,072.62
  6. Step 6: Final answer
    x = 9,339.36

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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.