Home / 13,664.66-18,855.15-7,695.95

Finding the Fourth Proportional to 13,664.66, 18,855.15 and 7,695.95

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Solution

The fourth proportional to 13,664.66, 18,855.15 and 7,695.95 is: 10,619.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.66 : 18,855.15 = 7,695.95 : x
  2. Step 2: Convert to fraction form
    13,664.66/18,855.15 = 7,695.95/x
  3. Step 3: Cross multiply
    13,664.66x = 18,855.15 × 7,695.95
  4. Step 4: Simplify right side
    13,664.66x = 145,108,291.64
  5. Step 5: Solve for x
    x = 145,108,291.64/13,664.66
  6. Step 6: Final answer
    x = 10,619.24

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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.