Home / 7,767.63-11,642.81-3,086.42

Finding the Fourth Proportional to 7,767.63, 11,642.81 and 3,086.42

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Solution

The fourth proportional to 7,767.63, 11,642.81 and 3,086.42 is: 4,626.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,767.63 : 11,642.81 = 3,086.42 : x
  2. Step 2: Convert to fraction form
    7,767.63/11,642.81 = 3,086.42/x
  3. Step 3: Cross multiply
    7,767.63x = 11,642.81 × 3,086.42
  4. Step 4: Simplify right side
    7,767.63x = 35,934,527.99
  5. Step 5: Solve for x
    x = 35,934,527.99/7,767.63
  6. Step 6: Final answer
    x = 4,626.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.