Home / 11,406.57-17,113.28-4,387.21

Finding the Fourth Proportional to 11,406.57, 17,113.28 and 4,387.21

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Solution

The fourth proportional to 11,406.57, 17,113.28 and 4,387.21 is: 6,582.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,406.57 : 17,113.28 = 4,387.21 : x
  2. Step 2: Convert to fraction form
    11,406.57/17,113.28 = 4,387.21/x
  3. Step 3: Cross multiply
    11,406.57x = 17,113.28 × 4,387.21
  4. Step 4: Simplify right side
    11,406.57x = 75,079,584.69
  5. Step 5: Solve for x
    x = 75,079,584.69/11,406.57
  6. Step 6: Final answer
    x = 6,582.13

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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.