Home / 8,909.23-13,366.82-2,986.70

Finding the Fourth Proportional to 8,909.23, 13,366.82 and 2,986.70

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Solution

The fourth proportional to 8,909.23, 13,366.82 and 2,986.70 is: 4,481.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,909.23 : 13,366.82 = 2,986.70 : x
  2. Step 2: Convert to fraction form
    8,909.23/13,366.82 = 2,986.70/x
  3. Step 3: Cross multiply
    8,909.23x = 13,366.82 × 2,986.70
  4. Step 4: Simplify right side
    8,909.23x = 39,922,715.11
  5. Step 5: Solve for x
    x = 39,922,715.11/8,909.23
  6. Step 6: Final answer
    x = 4,481.05

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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.