Home / 9,186.67-13,780.05-2,612.80

Finding the Fourth Proportional to 9,186.67, 13,780.05 and 2,612.80

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Solution

The fourth proportional to 9,186.67, 13,780.05 and 2,612.80 is: 3,919.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,186.67 : 13,780.05 = 2,612.80 : x
  2. Step 2: Convert to fraction form
    9,186.67/13,780.05 = 2,612.80/x
  3. Step 3: Cross multiply
    9,186.67x = 13,780.05 × 2,612.80
  4. Step 4: Simplify right side
    9,186.67x = 36,004,514.64
  5. Step 5: Solve for x
    x = 36,004,514.64/9,186.67
  6. Step 6: Final answer
    x = 3,919.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.