Home / 11,269.76-16,906.56-3,478.40

Finding the Fourth Proportional to 11,269.76, 16,906.56 and 3,478.40

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Solution

The fourth proportional to 11,269.76, 16,906.56 and 3,478.40 is: 5,218.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,269.76 : 16,906.56 = 3,478.40 : x
  2. Step 2: Convert to fraction form
    11,269.76/16,906.56 = 3,478.40/x
  3. Step 3: Cross multiply
    11,269.76x = 16,906.56 × 3,478.40
  4. Step 4: Simplify right side
    11,269.76x = 58,807,778.30
  5. Step 5: Solve for x
    x = 58,807,778.30/11,269.76
  6. Step 6: Final answer
    x = 5,218.19

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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.