Home / 7,869.12-11,810.97-3,976.26

Finding the Fourth Proportional to 7,869.12, 11,810.97 and 3,976.26

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Solution

The fourth proportional to 7,869.12, 11,810.97 and 3,976.26 is: 5,968.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.12 : 11,810.97 = 3,976.26 : x
  2. Step 2: Convert to fraction form
    7,869.12/11,810.97 = 3,976.26/x
  3. Step 3: Cross multiply
    7,869.12x = 11,810.97 × 3,976.26
  4. Step 4: Simplify right side
    7,869.12x = 46,963,487.57
  5. Step 5: Solve for x
    x = 46,963,487.57/7,869.12
  6. Step 6: Final answer
    x = 5,968.07

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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.