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Finding the Fourth Proportional to 8,005.87, 11,999.08 and 5,666.56

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Solution

The fourth proportional to 8,005.87, 11,999.08 and 5,666.56 is: 8,492.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,005.87 : 11,999.08 = 5,666.56 : x
  2. Step 2: Convert to fraction form
    8,005.87/11,999.08 = 5,666.56/x
  3. Step 3: Cross multiply
    8,005.87x = 11,999.08 × 5,666.56
  4. Step 4: Simplify right side
    8,005.87x = 67,993,506.76
  5. Step 5: Solve for x
    x = 67,993,506.76/8,005.87
  6. Step 6: Final answer
    x = 8,492.96

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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.