Home / 12,446.92-17,171.35-7,408.31

Finding the Fourth Proportional to 12,446.92, 17,171.35 and 7,408.31

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Solution

The fourth proportional to 12,446.92, 17,171.35 and 7,408.31 is: 10,220.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,446.92 : 17,171.35 = 7,408.31 : x
  2. Step 2: Convert to fraction form
    12,446.92/17,171.35 = 7,408.31/x
  3. Step 3: Cross multiply
    12,446.92x = 17,171.35 × 7,408.31
  4. Step 4: Simplify right side
    12,446.92x = 127,210,745.26
  5. Step 5: Solve for x
    x = 127,210,745.26/12,446.92
  6. Step 6: Final answer
    x = 10,220.26

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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.