Home / 7,777.27-11,656.14-3,329.70

Finding the Fourth Proportional to 7,777.27, 11,656.14 and 3,329.70

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Solution

The fourth proportional to 7,777.27, 11,656.14 and 3,329.70 is: 4,990.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777.27 : 11,656.14 = 3,329.70 : x
  2. Step 2: Convert to fraction form
    7,777.27/11,656.14 = 3,329.70/x
  3. Step 3: Cross multiply
    7,777.27x = 11,656.14 × 3,329.70
  4. Step 4: Simplify right side
    7,777.27x = 38,811,449.36
  5. Step 5: Solve for x
    x = 38,811,449.36/7,777.27
  6. Step 6: Final answer
    x = 4,990.37

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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.