Home / 12,767.67-19,139.82-5,372.65

Finding the Fourth Proportional to 12,767.67, 19,139.82 and 5,372.65

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Solution

The fourth proportional to 12,767.67, 19,139.82 and 5,372.65 is: 8,054.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,767.67 : 19,139.82 = 5,372.65 : x
  2. Step 2: Convert to fraction form
    12,767.67/19,139.82 = 5,372.65/x
  3. Step 3: Cross multiply
    12,767.67x = 19,139.82 × 5,372.65
  4. Step 4: Simplify right side
    12,767.67x = 102,831,553.92
  5. Step 5: Solve for x
    x = 102,831,553.92/12,767.67
  6. Step 6: Final answer
    x = 8,054.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.