Home / 7,813.24-11,721.08-2,617.90

Finding the Fourth Proportional to 7,813.24, 11,721.08 and 2,617.90

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Solution

The fourth proportional to 7,813.24, 11,721.08 and 2,617.90 is: 3,927.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.24 : 11,721.08 = 2,617.90 : x
  2. Step 2: Convert to fraction form
    7,813.24/11,721.08 = 2,617.90/x
  3. Step 3: Cross multiply
    7,813.24x = 11,721.08 × 2,617.90
  4. Step 4: Simplify right side
    7,813.24x = 30,684,615.33
  5. Step 5: Solve for x
    x = 30,684,615.33/7,813.24
  6. Step 6: Final answer
    x = 3,927.26

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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.