Home / 7,947.25-11,911.79-3,261.26

Finding the Fourth Proportional to 7,947.25, 11,911.79 and 3,261.26

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Solution

The fourth proportional to 7,947.25, 11,911.79 and 3,261.26 is: 4,888.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.25 : 11,911.79 = 3,261.26 : x
  2. Step 2: Convert to fraction form
    7,947.25/11,911.79 = 3,261.26/x
  3. Step 3: Cross multiply
    7,947.25x = 11,911.79 × 3,261.26
  4. Step 4: Simplify right side
    7,947.25x = 38,847,482.19
  5. Step 5: Solve for x
    x = 38,847,482.19/7,947.25
  6. Step 6: Final answer
    x = 4,888.17

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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.