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Finding the Fourth Proportional to 8,776.99, 12,100.09 and 5,939.87

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Solution

The fourth proportional to 8,776.99, 12,100.09 and 5,939.87 is: 8,188.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,776.99 : 12,100.09 = 5,939.87 : x
  2. Step 2: Convert to fraction form
    8,776.99/12,100.09 = 5,939.87/x
  3. Step 3: Cross multiply
    8,776.99x = 12,100.09 × 5,939.87
  4. Step 4: Simplify right side
    8,776.99x = 71,872,952.60
  5. Step 5: Solve for x
    x = 71,872,952.60/8,776.99
  6. Step 6: Final answer
    x = 8,188.79

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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.