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Finding the Fourth Proportional to 6,363.67, 8,780.07 and 4,125.64

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Solution

The fourth proportional to 6,363.67, 8,780.07 and 4,125.64 is: 5,692.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,363.67 : 8,780.07 = 4,125.64 : x
  2. Step 2: Convert to fraction form
    6,363.67/8,780.07 = 4,125.64/x
  3. Step 3: Cross multiply
    6,363.67x = 8,780.07 × 4,125.64
  4. Step 4: Simplify right side
    6,363.67x = 36,223,407.99
  5. Step 5: Solve for x
    x = 36,223,407.99/6,363.67
  6. Step 6: Final answer
    x = 5,692.22

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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.