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Finding the Fourth Proportional to 7,861.56, 11,792.37 and 7,467.39

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Solution

The fourth proportional to 7,861.56, 11,792.37 and 7,467.39 is: 11,201.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,861.56 : 11,792.37 = 7,467.39 : x
  2. Step 2: Convert to fraction form
    7,861.56/11,792.37 = 7,467.39/x
  3. Step 3: Cross multiply
    7,861.56x = 11,792.37 × 7,467.39
  4. Step 4: Simplify right side
    7,861.56x = 88,058,225.81
  5. Step 5: Solve for x
    x = 88,058,225.81/7,861.56
  6. Step 6: Final answer
    x = 11,201.11

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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.