Home / 13,632.97-18,812.62-8,326.66

Finding the Fourth Proportional to 13,632.97, 18,812.62 and 8,326.66

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Solution

The fourth proportional to 13,632.97, 18,812.62 and 8,326.66 is: 11,490.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.97 : 18,812.62 = 8,326.66 : x
  2. Step 2: Convert to fraction form
    13,632.97/18,812.62 = 8,326.66/x
  3. Step 3: Cross multiply
    13,632.97x = 18,812.62 × 8,326.66
  4. Step 4: Simplify right side
    13,632.97x = 156,646,290.45
  5. Step 5: Solve for x
    x = 156,646,290.45/13,632.97
  6. Step 6: Final answer
    x = 11,490.25

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1.5x scale

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.