Home / 7,086.21-9,767.97-4,428.87

Finding the Fourth Proportional to 7,086.21, 9,767.97 and 4,428.87

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Solution

The fourth proportional to 7,086.21, 9,767.97 and 4,428.87 is: 6,104.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,086.21 : 9,767.97 = 4,428.87 : x
  2. Step 2: Convert to fraction form
    7,086.21/9,767.97 = 4,428.87/x
  3. Step 3: Cross multiply
    7,086.21x = 9,767.97 × 4,428.87
  4. Step 4: Simplify right side
    7,086.21x = 43,261,069.29
  5. Step 5: Solve for x
    x = 43,261,069.29/7,086.21
  6. Step 6: Final answer
    x = 6,104.97

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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.