Home / 10,556.16-15,829.92-3,979.04

Finding the Fourth Proportional to 10,556.16, 15,829.92 and 3,979.04

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Solution

The fourth proportional to 10,556.16, 15,829.92 and 3,979.04 is: 5,966.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,556.16 : 15,829.92 = 3,979.04 : x
  2. Step 2: Convert to fraction form
    10,556.16/15,829.92 = 3,979.04/x
  3. Step 3: Cross multiply
    10,556.16x = 15,829.92 × 3,979.04
  4. Step 4: Simplify right side
    10,556.16x = 62,987,884.88
  5. Step 5: Solve for x
    x = 62,987,884.88/10,556.16
  6. Step 6: Final answer
    x = 5,966.93

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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.