Home / 6,867.72-9,477.45-3,723.90

Finding the Fourth Proportional to 6,867.72, 9,477.45 and 3,723.90

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Solution

The fourth proportional to 6,867.72, 9,477.45 and 3,723.90 is: 5,138.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,867.72 : 9,477.45 = 3,723.90 : x
  2. Step 2: Convert to fraction form
    6,867.72/9,477.45 = 3,723.90/x
  3. Step 3: Cross multiply
    6,867.72x = 9,477.45 × 3,723.90
  4. Step 4: Simplify right side
    6,867.72x = 35,293,125.56
  5. Step 5: Solve for x
    x = 35,293,125.56/6,867.72
  6. Step 6: Final answer
    x = 5,138.99

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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.