Home / 7,716.51-11,572.35-2,785.50

Finding the Fourth Proportional to 7,716.51, 11,572.35 and 2,785.50

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Solution

The fourth proportional to 7,716.51, 11,572.35 and 2,785.50 is: 4,177.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.51 : 11,572.35 = 2,785.50 : x
  2. Step 2: Convert to fraction form
    7,716.51/11,572.35 = 2,785.50/x
  3. Step 3: Cross multiply
    7,716.51x = 11,572.35 × 2,785.50
  4. Step 4: Simplify right side
    7,716.51x = 32,234,780.93
  5. Step 5: Solve for x
    x = 32,234,780.93/7,716.51
  6. Step 6: Final answer
    x = 4,177.38

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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.