Home / 8,721.96-13,081.66-2,877.82

Finding the Fourth Proportional to 8,721.96, 13,081.66 and 2,877.82

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Solution

The fourth proportional to 8,721.96, 13,081.66 and 2,877.82 is: 4,316.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.96 : 13,081.66 = 2,877.82 : x
  2. Step 2: Convert to fraction form
    8,721.96/13,081.66 = 2,877.82/x
  3. Step 3: Cross multiply
    8,721.96x = 13,081.66 × 2,877.82
  4. Step 4: Simplify right side
    8,721.96x = 37,646,662.78
  5. Step 5: Solve for x
    x = 37,646,662.78/8,721.96
  6. Step 6: Final answer
    x = 4,316.31

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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.