Home / 13,419.08-20,126.32-3,558.52

Finding the Fourth Proportional to 13,419.08, 20,126.32 and 3,558.52

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Solution

The fourth proportional to 13,419.08, 20,126.32 and 3,558.52 is: 5,337.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419.08 : 20,126.32 = 3,558.52 : x
  2. Step 2: Convert to fraction form
    13,419.08/20,126.32 = 3,558.52/x
  3. Step 3: Cross multiply
    13,419.08x = 20,126.32 × 3,558.52
  4. Step 4: Simplify right side
    13,419.08x = 71,619,912.25
  5. Step 5: Solve for x
    x = 71,619,912.25/13,419.08
  6. Step 6: Final answer
    x = 5,337.17

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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.