Home / 12,178.20-16,805.84-6,589.20

Finding the Fourth Proportional to 12,178.20, 16,805.84 and 6,589.20

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Solution

The fourth proportional to 12,178.20, 16,805.84 and 6,589.20 is: 9,093.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178.20 : 16,805.84 = 6,589.20 : x
  2. Step 2: Convert to fraction form
    12,178.20/16,805.84 = 6,589.20/x
  3. Step 3: Cross multiply
    12,178.20x = 16,805.84 × 6,589.20
  4. Step 4: Simplify right side
    12,178.20x = 110,737,040.93
  5. Step 5: Solve for x
    x = 110,737,040.93/12,178.20
  6. Step 6: Final answer
    x = 9,093.05

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Half scale
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Double 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.