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Finding the Fourth Proportional to 8,756, 12,079.68 and 5,773.22

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Solution

The fourth proportional to 8,756, 12,079.68 and 5,773.22 is: 7,964.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756 : 12,079.68 = 5,773.22 : x
  2. Step 2: Convert to fraction form
    8,756/12,079.68 = 5,773.22/x
  3. Step 3: Cross multiply
    8,756x = 12,079.68 × 5,773.22
  4. Step 4: Simplify right side
    8,756x = 69,738,650.17
  5. Step 5: Solve for x
    x = 69,738,650.17/8,756
  6. Step 6: Final answer
    x = 7,964.67

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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.