Home / 7,708.86-11,561.37-3,328.38

Finding the Fourth Proportional to 7,708.86, 11,561.37 and 3,328.38

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Solution

The fourth proportional to 7,708.86, 11,561.37 and 3,328.38 is: 4,991.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,708.86 : 11,561.37 = 3,328.38 : x
  2. Step 2: Convert to fraction form
    7,708.86/11,561.37 = 3,328.38/x
  3. Step 3: Cross multiply
    7,708.86x = 11,561.37 × 3,328.38
  4. Step 4: Simplify right side
    7,708.86x = 38,480,632.68
  5. Step 5: Solve for x
    x = 38,480,632.68/7,708.86
  6. Step 6: Final answer
    x = 4,991.74

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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.