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Finding the Fourth Proportional to 6,867.49, 9,477.72 and 3,883.85

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Solution

The fourth proportional to 6,867.49, 9,477.72 and 3,883.85 is: 5,360.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,867.49 : 9,477.72 = 3,883.85 : x
  2. Step 2: Convert to fraction form
    6,867.49/9,477.72 = 3,883.85/x
  3. Step 3: Cross multiply
    6,867.49x = 9,477.72 × 3,883.85
  4. Step 4: Simplify right side
    6,867.49x = 36,810,066.52
  5. Step 5: Solve for x
    x = 36,810,066.52/6,867.49
  6. Step 6: Final answer
    x = 5,360.05

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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.