Home / 7,719.12-11,584.22-5,776.47

Finding the Fourth Proportional to 7,719.12, 11,584.22 and 5,776.47

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Solution

The fourth proportional to 7,719.12, 11,584.22 and 5,776.47 is: 8,668.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.12 : 11,584.22 = 5,776.47 : x
  2. Step 2: Convert to fraction form
    7,719.12/11,584.22 = 5,776.47/x
  3. Step 3: Cross multiply
    7,719.12x = 11,584.22 × 5,776.47
  4. Step 4: Simplify right side
    7,719.12x = 66,915,870.42
  5. Step 5: Solve for x
    x = 66,915,870.42/7,719.12
  6. Step 6: Final answer
    x = 8,668.85

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1.5x scale

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.