Home / 8,813.41-13,218.61-2,890.18

Finding the Fourth Proportional to 8,813.41, 13,218.61 and 2,890.18

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Solution

The fourth proportional to 8,813.41, 13,218.61 and 2,890.18 is: 4,334.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.41 : 13,218.61 = 2,890.18 : x
  2. Step 2: Convert to fraction form
    8,813.41/13,218.61 = 2,890.18/x
  3. Step 3: Cross multiply
    8,813.41x = 13,218.61 × 2,890.18
  4. Step 4: Simplify right side
    8,813.41x = 38,204,162.25
  5. Step 5: Solve for x
    x = 38,204,162.25/8,813.41
  6. Step 6: Final answer
    x = 4,334.78

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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.