Home / 13,766.69-18,996.41-8,100.19

Finding the Fourth Proportional to 13,766.69, 18,996.41 and 8,100.19

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Solution

The fourth proportional to 13,766.69, 18,996.41 and 8,100.19 is: 11,177.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,766.69 : 18,996.41 = 8,100.19 : x
  2. Step 2: Convert to fraction form
    13,766.69/18,996.41 = 8,100.19/x
  3. Step 3: Cross multiply
    13,766.69x = 18,996.41 × 8,100.19
  4. Step 4: Simplify right side
    13,766.69x = 153,874,530.32
  5. Step 5: Solve for x
    x = 153,874,530.32/13,766.69
  6. Step 6: Final answer
    x = 11,177.31

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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.