Home / 13,669.27-20,505.12-5,349.90

Finding the Fourth Proportional to 13,669.27, 20,505.12 and 5,349.90

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Solution

The fourth proportional to 13,669.27, 20,505.12 and 5,349.90 is: 8,025.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.27 : 20,505.12 = 5,349.90 : x
  2. Step 2: Convert to fraction form
    13,669.27/20,505.12 = 5,349.90/x
  3. Step 3: Cross multiply
    13,669.27x = 20,505.12 × 5,349.90
  4. Step 4: Simplify right side
    13,669.27x = 109,700,341.49
  5. Step 5: Solve for x
    x = 109,700,341.49/13,669.27
  6. Step 6: Final answer
    x = 8,025.33

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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.