Home / 9,119.32-13,690.77-4,739.83

Finding the Fourth Proportional to 9,119.32, 13,690.77 and 4,739.83

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Solution

The fourth proportional to 9,119.32, 13,690.77 and 4,739.83 is: 7,115.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,119.32 : 13,690.77 = 4,739.83 : x
  2. Step 2: Convert to fraction form
    9,119.32/13,690.77 = 4,739.83/x
  3. Step 3: Cross multiply
    9,119.32x = 13,690.77 × 4,739.83
  4. Step 4: Simplify right side
    9,119.32x = 64,891,922.37
  5. Step 5: Solve for x
    x = 64,891,922.37/9,119.32
  6. Step 6: Final answer
    x = 7,115.87

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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.