Home / 10,947.17-16,420.97-3,551.60

Finding the Fourth Proportional to 10,947.17, 16,420.97 and 3,551.60

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Solution

The fourth proportional to 10,947.17, 16,420.97 and 3,551.60 is: 5,327.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,947.17 : 16,420.97 = 3,551.60 : x
  2. Step 2: Convert to fraction form
    10,947.17/16,420.97 = 3,551.60/x
  3. Step 3: Cross multiply
    10,947.17x = 16,420.97 × 3,551.60
  4. Step 4: Simplify right side
    10,947.17x = 58,320,766.98
  5. Step 5: Solve for x
    x = 58,320,766.98/10,947.17
  6. Step 6: Final answer
    x = 5,327.47

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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.