Home / 10,343.16-15,516.20-3,321.52

Finding the Fourth Proportional to 10,343.16, 15,516.20 and 3,321.52

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Solution

The fourth proportional to 10,343.16, 15,516.20 and 3,321.52 is: 4,982.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,343.16 : 15,516.20 = 3,321.52 : x
  2. Step 2: Convert to fraction form
    10,343.16/15,516.20 = 3,321.52/x
  3. Step 3: Cross multiply
    10,343.16x = 15,516.20 × 3,321.52
  4. Step 4: Simplify right side
    10,343.16x = 51,537,368.62
  5. Step 5: Solve for x
    x = 51,537,368.62/10,343.16
  6. Step 6: Final answer
    x = 4,982.75

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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.