Home / 12,178.76-16,806.70-6,589.80

Finding the Fourth Proportional to 12,178.76, 16,806.70 and 6,589.80

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Solution

The fourth proportional to 12,178.76, 16,806.70 and 6,589.80 is: 9,093.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178.76 : 16,806.70 = 6,589.80 : x
  2. Step 2: Convert to fraction form
    12,178.76/16,806.70 = 6,589.80/x
  3. Step 3: Cross multiply
    12,178.76x = 16,806.70 × 6,589.80
  4. Step 4: Simplify right side
    12,178.76x = 110,752,791.66
  5. Step 5: Solve for x
    x = 110,752,791.66/12,178.76
  6. Step 6: Final answer
    x = 9,093.93

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Half scale
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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.