Home / 10,531.09-15,799.88-7,576.21

Finding the Fourth Proportional to 10,531.09, 15,799.88 and 7,576.21

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Solution

The fourth proportional to 10,531.09, 15,799.88 and 7,576.21 is: 11,366.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,531.09 : 15,799.88 = 7,576.21 : x
  2. Step 2: Convert to fraction form
    10,531.09/15,799.88 = 7,576.21/x
  3. Step 3: Cross multiply
    10,531.09x = 15,799.88 × 7,576.21
  4. Step 4: Simplify right side
    10,531.09x = 119,703,208.85
  5. Step 5: Solve for x
    x = 119,703,208.85/10,531.09
  6. Step 6: Final answer
    x = 11,366.65

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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.