Home / 13,392.29-18,480.92-8,086.19

Finding the Fourth Proportional to 13,392.29, 18,480.92 and 8,086.19

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Solution

The fourth proportional to 13,392.29, 18,480.92 and 8,086.19 is: 11,158.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392.29 : 18,480.92 = 8,086.19 : x
  2. Step 2: Convert to fraction form
    13,392.29/18,480.92 = 8,086.19/x
  3. Step 3: Cross multiply
    13,392.29x = 18,480.92 × 8,086.19
  4. Step 4: Simplify right side
    13,392.29x = 149,440,097.66
  5. Step 5: Solve for x
    x = 149,440,097.66/13,392.29
  6. Step 6: Final answer
    x = 11,158.66

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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.