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Finding the Fourth Proportional to 19,247.46, 28,866.09 and 7,560.78

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Solution

The fourth proportional to 19,247.46, 28,866.09 and 7,560.78 is: 11,339.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,247.46 : 28,866.09 = 7,560.78 : x
  2. Step 2: Convert to fraction form
    19,247.46/28,866.09 = 7,560.78/x
  3. Step 3: Cross multiply
    19,247.46x = 28,866.09 × 7,560.78
  4. Step 4: Simplify right side
    19,247.46x = 218,250,155.95
  5. Step 5: Solve for x
    x = 218,250,155.95/19,247.46
  6. Step 6: Final answer
    x = 11,339.17

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.