Home / 7,664.81-11,497.20-2,118.14

Finding the Fourth Proportional to 7,664.81, 11,497.20 and 2,118.14

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Solution

The fourth proportional to 7,664.81, 11,497.20 and 2,118.14 is: 3,177.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,664.81 : 11,497.20 = 2,118.14 : x
  2. Step 2: Convert to fraction form
    7,664.81/11,497.20 = 2,118.14/x
  3. Step 3: Cross multiply
    7,664.81x = 11,497.20 × 2,118.14
  4. Step 4: Simplify right side
    7,664.81x = 24,352,679.21
  5. Step 5: Solve for x
    x = 24,352,679.21/7,664.81
  6. Step 6: Final answer
    x = 3,177.21

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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.