Home / 12,539.91-17,306.51-7,163.19

Finding the Fourth Proportional to 12,539.91, 17,306.51 and 7,163.19

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Solution

The fourth proportional to 12,539.91, 17,306.51 and 7,163.19 is: 9,886.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,539.91 : 17,306.51 = 7,163.19 : x
  2. Step 2: Convert to fraction form
    12,539.91/17,306.51 = 7,163.19/x
  3. Step 3: Cross multiply
    12,539.91x = 17,306.51 × 7,163.19
  4. Step 4: Simplify right side
    12,539.91x = 123,969,819.37
  5. Step 5: Solve for x
    x = 123,969,819.37/12,539.91
  6. Step 6: Final answer
    x = 9,886.03

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Double scale
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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.