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Finding the Fourth Proportional to 15,174.70, 20,944.43 and 9,860.29

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Solution

The fourth proportional to 15,174.70, 20,944.43 and 9,860.29 is: 13,609.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,174.70 : 20,944.43 = 9,860.29 : x
  2. Step 2: Convert to fraction form
    15,174.70/20,944.43 = 9,860.29/x
  3. Step 3: Cross multiply
    15,174.70x = 20,944.43 × 9,860.29
  4. Step 4: Simplify right side
    15,174.70x = 206,518,153.68
  5. Step 5: Solve for x
    x = 206,518,153.68/15,174.70
  6. Step 6: Final answer
    x = 13,609.37

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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.