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Finding the Fourth Proportional to 10,856.52, 16,284.80 and 2,648.52

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Solution

The fourth proportional to 10,856.52, 16,284.80 and 2,648.52 is: 3,972.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,856.52 : 16,284.80 = 2,648.52 : x
  2. Step 2: Convert to fraction form
    10,856.52/16,284.80 = 2,648.52/x
  3. Step 3: Cross multiply
    10,856.52x = 16,284.80 × 2,648.52
  4. Step 4: Simplify right side
    10,856.52x = 43,130,618.50
  5. Step 5: Solve for x
    x = 43,130,618.50/10,856.52
  6. Step 6: Final answer
    x = 3,972.78

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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.