Home / 10,556.64-15,833.12-3,982.88

Finding the Fourth Proportional to 10,556.64, 15,833.12 and 3,982.88

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Solution

The fourth proportional to 10,556.64, 15,833.12 and 3,982.88 is: 5,973.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,556.64 : 15,833.12 = 3,982.88 : x
  2. Step 2: Convert to fraction form
    10,556.64/15,833.12 = 3,982.88/x
  3. Step 3: Cross multiply
    10,556.64x = 15,833.12 × 3,982.88
  4. Step 4: Simplify right side
    10,556.64x = 63,061,416.99
  5. Step 5: Solve for x
    x = 63,061,416.99/10,556.64
  6. Step 6: Final answer
    x = 5,973.63

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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.