Home / 7,716.06-11,575.31-2,785.19

Finding the Fourth Proportional to 7,716.06, 11,575.31 and 2,785.19

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Solution

The fourth proportional to 7,716.06, 11,575.31 and 2,785.19 is: 4,178.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.06 : 11,575.31 = 2,785.19 : x
  2. Step 2: Convert to fraction form
    7,716.06/11,575.31 = 2,785.19/x
  3. Step 3: Cross multiply
    7,716.06x = 11,575.31 × 2,785.19
  4. Step 4: Simplify right side
    7,716.06x = 32,239,365.86
  5. Step 5: Solve for x
    x = 32,239,365.86/7,716.06
  6. Step 6: Final answer
    x = 4,178.22

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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.