Home / 12,844.68-17,721.90-7,539.72

Finding the Fourth Proportional to 12,844.68, 17,721.90 and 7,539.72

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Solution

The fourth proportional to 12,844.68, 17,721.90 and 7,539.72 is: 10,402.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,844.68 : 17,721.90 = 7,539.72 : x
  2. Step 2: Convert to fraction form
    12,844.68/17,721.90 = 7,539.72/x
  3. Step 3: Cross multiply
    12,844.68x = 17,721.90 × 7,539.72
  4. Step 4: Simplify right side
    12,844.68x = 133,618,163.87
  5. Step 5: Solve for x
    x = 133,618,163.87/12,844.68
  6. Step 6: Final answer
    x = 10,402.61

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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.