Home / 16,221.25-22,385.33-8,769.25

Finding the Fourth Proportional to 16,221.25, 22,385.33 and 8,769.25

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Solution

The fourth proportional to 16,221.25, 22,385.33 and 8,769.25 is: 12,101.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,221.25 : 22,385.33 = 8,769.25 : x
  2. Step 2: Convert to fraction form
    16,221.25/22,385.33 = 8,769.25/x
  3. Step 3: Cross multiply
    16,221.25x = 22,385.33 × 8,769.25
  4. Step 4: Simplify right side
    16,221.25x = 196,302,555.10
  5. Step 5: Solve for x
    x = 196,302,555.10/16,221.25
  6. Step 6: Final answer
    x = 12,101.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.