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Finding the Fourth Proportional to 10,563.46, 15,847.50 and 3,989.68

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Solution

The fourth proportional to 10,563.46, 15,847.50 and 3,989.68 is: 5,985.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,563.46 : 15,847.50 = 3,989.68 : x
  2. Step 2: Convert to fraction form
    10,563.46/15,847.50 = 3,989.68/x
  3. Step 3: Cross multiply
    10,563.46x = 15,847.50 × 3,989.68
  4. Step 4: Simplify right side
    10,563.46x = 63,226,453.80
  5. Step 5: Solve for x
    x = 63,226,453.80/10,563.46
  6. Step 6: Final answer
    x = 5,985.39

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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.