Home / 8,736.74-13,098.92-2,811.79

Finding the Fourth Proportional to 8,736.74, 13,098.92 and 2,811.79

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Solution

The fourth proportional to 8,736.74, 13,098.92 and 2,811.79 is: 4,215.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,736.74 : 13,098.92 = 2,811.79 : x
  2. Step 2: Convert to fraction form
    8,736.74/13,098.92 = 2,811.79/x
  3. Step 3: Cross multiply
    8,736.74x = 13,098.92 × 2,811.79
  4. Step 4: Simplify right side
    8,736.74x = 36,831,386.55
  5. Step 5: Solve for x
    x = 36,831,386.55/8,736.74
  6. Step 6: Final answer
    x = 4,215.69

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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.