Home / 12,207.78-16,849.83-7,427.76

Finding the Fourth Proportional to 12,207.78, 16,849.83 and 7,427.76

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Solution

The fourth proportional to 12,207.78, 16,849.83 and 7,427.76 is: 10,252.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.78 : 16,849.83 = 7,427.76 : x
  2. Step 2: Convert to fraction form
    12,207.78/16,849.83 = 7,427.76/x
  3. Step 3: Cross multiply
    12,207.78x = 16,849.83 × 7,427.76
  4. Step 4: Simplify right side
    12,207.78x = 125,156,493.28
  5. Step 5: Solve for x
    x = 125,156,493.28/12,207.78
  6. Step 6: Final answer
    x = 10,252.19

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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.