Home / 13,683.11-20,509.66-5,353.97

Finding the Fourth Proportional to 13,683.11, 20,509.66 and 5,353.97

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Solution

The fourth proportional to 13,683.11, 20,509.66 and 5,353.97 is: 8,025.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,683.11 : 20,509.66 = 5,353.97 : x
  2. Step 2: Convert to fraction form
    13,683.11/20,509.66 = 5,353.97/x
  3. Step 3: Cross multiply
    13,683.11x = 20,509.66 × 5,353.97
  4. Step 4: Simplify right side
    13,683.11x = 109,807,988.42
  5. Step 5: Solve for x
    x = 109,807,988.42/13,683.11
  6. Step 6: Final answer
    x = 8,025.08

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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.