Home / 12,446.08-17,174.94-7,142.68

Finding the Fourth Proportional to 12,446.08, 17,174.94 and 7,142.68

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Solution

The fourth proportional to 12,446.08, 17,174.94 and 7,142.68 is: 9,856.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,446.08 : 17,174.94 = 7,142.68 : x
  2. Step 2: Convert to fraction form
    12,446.08/17,174.94 = 7,142.68/x
  3. Step 3: Cross multiply
    12,446.08x = 17,174.94 × 7,142.68
  4. Step 4: Simplify right side
    12,446.08x = 122,675,100.44
  5. Step 5: Solve for x
    x = 122,675,100.44/12,446.08
  6. Step 6: Final answer
    x = 9,856.53

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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.