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Finding the Fourth Proportional to 8,961.99, 13,442.99 and 4,267.77

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Solution

The fourth proportional to 8,961.99, 13,442.99 and 4,267.77 is: 6,401.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961.99 : 13,442.99 = 4,267.77 : x
  2. Step 2: Convert to fraction form
    8,961.99/13,442.99 = 4,267.77/x
  3. Step 3: Cross multiply
    8,961.99x = 13,442.99 × 4,267.77
  4. Step 4: Simplify right side
    8,961.99x = 57,371,530.29
  5. Step 5: Solve for x
    x = 57,371,530.29/8,961.99
  6. Step 6: Final answer
    x = 6,401.65

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Similar ratio
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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.