Home / 13,969.12-20,949.24-4,607.39

Finding the Fourth Proportional to 13,969.12, 20,949.24 and 4,607.39

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Solution

The fourth proportional to 13,969.12, 20,949.24 and 4,607.39 is: 6,909.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,969.12 : 20,949.24 = 4,607.39 : x
  2. Step 2: Convert to fraction form
    13,969.12/20,949.24 = 4,607.39/x
  3. Step 3: Cross multiply
    13,969.12x = 20,949.24 × 4,607.39
  4. Step 4: Simplify right side
    13,969.12x = 96,521,318.88
  5. Step 5: Solve for x
    x = 96,521,318.88/13,969.12
  6. Step 6: Final answer
    x = 6,909.62

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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.