Home / 13,394.16-18,484.20-8,087.85

Finding the Fourth Proportional to 13,394.16, 18,484.20 and 8,087.85

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Solution

The fourth proportional to 13,394.16, 18,484.20 and 8,087.85 is: 11,161.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.16 : 18,484.20 = 8,087.85 : x
  2. Step 2: Convert to fraction form
    13,394.16/18,484.20 = 8,087.85/x
  3. Step 3: Cross multiply
    13,394.16x = 18,484.20 × 8,087.85
  4. Step 4: Simplify right side
    13,394.16x = 149,497,436.97
  5. Step 5: Solve for x
    x = 149,497,436.97/13,394.16
  6. Step 6: Final answer
    x = 11,161.39

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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.