Home / 6,618.88-9,135.32-3,967.84

Finding the Fourth Proportional to 6,618.88, 9,135.32 and 3,967.84

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Solution

The fourth proportional to 6,618.88, 9,135.32 and 3,967.84 is: 5,476.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,618.88 : 9,135.32 = 3,967.84 : x
  2. Step 2: Convert to fraction form
    6,618.88/9,135.32 = 3,967.84/x
  3. Step 3: Cross multiply
    6,618.88x = 9,135.32 × 3,967.84
  4. Step 4: Simplify right side
    6,618.88x = 36,247,488.11
  5. Step 5: Solve for x
    x = 36,247,488.11/6,618.88
  6. Step 6: Final answer
    x = 5,476.38

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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.