Home / 13,664.75-18,854.11-7,695.23

Finding the Fourth Proportional to 13,664.75, 18,854.11 and 7,695.23

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Solution

The fourth proportional to 13,664.75, 18,854.11 and 7,695.23 is: 10,617.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.75 : 18,854.11 = 7,695.23 : x
  2. Step 2: Convert to fraction form
    13,664.75/18,854.11 = 7,695.23/x
  3. Step 3: Cross multiply
    13,664.75x = 18,854.11 × 7,695.23
  4. Step 4: Simplify right side
    13,664.75x = 145,086,712.90
  5. Step 5: Solve for x
    x = 145,086,712.90/13,664.75
  6. Step 6: Final answer
    x = 10,617.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.