Home / 8,813.28-13,219.44-3,618.96

Finding the Fourth Proportional to 8,813.28, 13,219.44 and 3,618.96

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Solution

The fourth proportional to 8,813.28, 13,219.44 and 3,618.96 is: 5,428.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.28 : 13,219.44 = 3,618.96 : x
  2. Step 2: Convert to fraction form
    8,813.28/13,219.44 = 3,618.96/x
  3. Step 3: Cross multiply
    8,813.28x = 13,219.44 × 3,618.96
  4. Step 4: Simplify right side
    8,813.28x = 47,840,624.58
  5. Step 5: Solve for x
    x = 47,840,624.58/8,813.28
  6. Step 6: Final answer
    x = 5,428.24

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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.