Home / 9,216.20-13,826.64-2,642.78

Finding the Fourth Proportional to 9,216.20, 13,826.64 and 2,642.78

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Solution

The fourth proportional to 9,216.20, 13,826.64 and 2,642.78 is: 3,964.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,216.20 : 13,826.64 = 2,642.78 : x
  2. Step 2: Convert to fraction form
    9,216.20/13,826.64 = 2,642.78/x
  3. Step 3: Cross multiply
    9,216.20x = 13,826.64 × 2,642.78
  4. Step 4: Simplify right side
    9,216.20x = 36,540,767.66
  5. Step 5: Solve for x
    x = 36,540,767.66/9,216.20
  6. Step 6: Final answer
    x = 3,964.84

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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.