Home / 10,001.85-15,004.13-3,429.87

Finding the Fourth Proportional to 10,001.85, 15,004.13 and 3,429.87

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Solution

The fourth proportional to 10,001.85, 15,004.13 and 3,429.87 is: 5,145.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,001.85 : 15,004.13 = 3,429.87 : x
  2. Step 2: Convert to fraction form
    10,001.85/15,004.13 = 3,429.87/x
  3. Step 3: Cross multiply
    10,001.85x = 15,004.13 × 3,429.87
  4. Step 4: Simplify right side
    10,001.85x = 51,462,198.21
  5. Step 5: Solve for x
    x = 51,462,198.21/10,001.85
  6. Step 6: Final answer
    x = 5,145.27

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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.