Home / 8,991.28-13,477.68-3,443.12

Finding the Fourth Proportional to 8,991.28, 13,477.68 and 3,443.12

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Solution

The fourth proportional to 8,991.28, 13,477.68 and 3,443.12 is: 5,161.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.28 : 13,477.68 = 3,443.12 : x
  2. Step 2: Convert to fraction form
    8,991.28/13,477.68 = 3,443.12/x
  3. Step 3: Cross multiply
    8,991.28x = 13,477.68 × 3,443.12
  4. Step 4: Simplify right side
    8,991.28x = 46,405,269.56
  5. Step 5: Solve for x
    x = 46,405,269.56/8,991.28
  6. Step 6: Final answer
    x = 5,161.14

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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.