Home / 13,677.51-18,876.39-8,375.85

Finding the Fourth Proportional to 13,677.51, 18,876.39 and 8,375.85

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Solution

The fourth proportional to 13,677.51, 18,876.39 and 8,375.85 is: 11,559.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.51 : 18,876.39 = 8,375.85 : x
  2. Step 2: Convert to fraction form
    13,677.51/18,876.39 = 8,375.85/x
  3. Step 3: Cross multiply
    13,677.51x = 18,876.39 × 8,375.85
  4. Step 4: Simplify right side
    13,677.51x = 158,105,811.18
  5. Step 5: Solve for x
    x = 158,105,811.18/13,677.51
  6. Step 6: Final answer
    x = 11,559.55

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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.