Home / 13,408.40-20,033.24-12,949.04

Finding the Fourth Proportional to 13,408.40, 20,033.24 and 12,949.04

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Solution

The fourth proportional to 13,408.40, 20,033.24 and 12,949.04 is: 19,346.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,408.40 : 20,033.24 = 12,949.04 : x
  2. Step 2: Convert to fraction form
    13,408.40/20,033.24 = 12,949.04/x
  3. Step 3: Cross multiply
    13,408.40x = 20,033.24 × 12,949.04
  4. Step 4: Simplify right side
    13,408.40x = 259,411,226.09
  5. Step 5: Solve for x
    x = 259,411,226.09/13,408.40
  6. Step 6: Final answer
    x = 19,346.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.