Home / 7,716.49-11,572.34-2,785.50

Finding the Fourth Proportional to 7,716.49, 11,572.34 and 2,785.50

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Solution

The fourth proportional to 7,716.49, 11,572.34 and 2,785.50 is: 4,177.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.49 : 11,572.34 = 2,785.50 : x
  2. Step 2: Convert to fraction form
    7,716.49/11,572.34 = 2,785.50/x
  3. Step 3: Cross multiply
    7,716.49x = 11,572.34 × 2,785.50
  4. Step 4: Simplify right side
    7,716.49x = 32,234,753.07
  5. Step 5: Solve for x
    x = 32,234,753.07/7,716.49
  6. Step 6: Final answer
    x = 4,177.39

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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.