Home / 13,269.32-19,905.24-3,408.68

Finding the Fourth Proportional to 13,269.32, 19,905.24 and 3,408.68

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Solution

The fourth proportional to 13,269.32, 19,905.24 and 3,408.68 is: 5,113.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.32 : 19,905.24 = 3,408.68 : x
  2. Step 2: Convert to fraction form
    13,269.32/19,905.24 = 3,408.68/x
  3. Step 3: Cross multiply
    13,269.32x = 19,905.24 × 3,408.68
  4. Step 4: Simplify right side
    13,269.32x = 67,850,656.03
  5. Step 5: Solve for x
    x = 67,850,656.03/13,269.32
  6. Step 6: Final answer
    x = 5,113.35

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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.