Home / 11,812.40-17,721.65-4,416.92

Finding the Fourth Proportional to 11,812.40, 17,721.65 and 4,416.92

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Solution

The fourth proportional to 11,812.40, 17,721.65 and 4,416.92 is: 6,626.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,812.40 : 17,721.65 = 4,416.92 : x
  2. Step 2: Convert to fraction form
    11,812.40/17,721.65 = 4,416.92/x
  3. Step 3: Cross multiply
    11,812.40x = 17,721.65 × 4,416.92
  4. Step 4: Simplify right side
    11,812.40x = 78,275,032.75
  5. Step 5: Solve for x
    x = 78,275,032.75/11,812.40
  6. Step 6: Final answer
    x = 6,626.51

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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.