Home / 10,289.57-15,431.24-3,269.30

Finding the Fourth Proportional to 10,289.57, 15,431.24 and 3,269.30

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Solution

The fourth proportional to 10,289.57, 15,431.24 and 3,269.30 is: 4,902.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,289.57 : 15,431.24 = 3,269.30 : x
  2. Step 2: Convert to fraction form
    10,289.57/15,431.24 = 3,269.30/x
  3. Step 3: Cross multiply
    10,289.57x = 15,431.24 × 3,269.30
  4. Step 4: Simplify right side
    10,289.57x = 50,449,283.95
  5. Step 5: Solve for x
    x = 50,449,283.95/10,289.57
  6. Step 6: Final answer
    x = 4,902.96

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1.5x scale

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.