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Finding the Fourth Proportional to 8,769.70, 12,099.08 and 5,627.62

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Solution

The fourth proportional to 8,769.70, 12,099.08 and 5,627.62 is: 7,764.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,769.70 : 12,099.08 = 5,627.62 : x
  2. Step 2: Convert to fraction form
    8,769.70/12,099.08 = 5,627.62/x
  3. Step 3: Cross multiply
    8,769.70x = 12,099.08 × 5,627.62
  4. Step 4: Simplify right side
    8,769.70x = 68,089,024.59
  5. Step 5: Solve for x
    x = 68,089,024.59/8,769.70
  6. Step 6: Final answer
    x = 7,764.12

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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.