Home / 7,664.90-11,497.22-2,118.12

Finding the Fourth Proportional to 7,664.90, 11,497.22 and 2,118.12

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Solution

The fourth proportional to 7,664.90, 11,497.22 and 2,118.12 is: 3,177.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,664.90 : 11,497.22 = 2,118.12 : x
  2. Step 2: Convert to fraction form
    7,664.90/11,497.22 = 2,118.12/x
  3. Step 3: Cross multiply
    7,664.90x = 11,497.22 × 2,118.12
  4. Step 4: Simplify right side
    7,664.90x = 24,352,453.81
  5. Step 5: Solve for x
    x = 24,352,453.81/7,664.90
  6. Step 6: Final answer
    x = 3,177.14

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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.