Home / 6,867.60-9,477.36-3,723.78

Finding the Fourth Proportional to 6,867.60, 9,477.36 and 3,723.78

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Solution

The fourth proportional to 6,867.60, 9,477.36 and 3,723.78 is: 5,138.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,867.60 : 9,477.36 = 3,723.78 : x
  2. Step 2: Convert to fraction form
    6,867.60/9,477.36 = 3,723.78/x
  3. Step 3: Cross multiply
    6,867.60x = 9,477.36 × 3,723.78
  4. Step 4: Simplify right side
    6,867.60x = 35,291,603.62
  5. Step 5: Solve for x
    x = 35,291,603.62/6,867.60
  6. Step 6: Final answer
    x = 5,138.86

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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.