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Finding the Fourth Proportional to 17,388.60, 26,082.60 and 5,542.21

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Solution

The fourth proportional to 17,388.60, 26,082.60 and 5,542.21 is: 8,313.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,388.60 : 26,082.60 = 5,542.21 : x
  2. Step 2: Convert to fraction form
    17,388.60/26,082.60 = 5,542.21/x
  3. Step 3: Cross multiply
    17,388.60x = 26,082.60 × 5,542.21
  4. Step 4: Simplify right side
    17,388.60x = 144,555,202.12
  5. Step 5: Solve for x
    x = 144,555,202.12/17,388.60
  6. Step 6: Final answer
    x = 8,313.22

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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.