Home / 13,508.42-20,211.86-9,356.52

Finding the Fourth Proportional to 13,508.42, 20,211.86 and 9,356.52

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Solution

The fourth proportional to 13,508.42, 20,211.86 and 9,356.52 is: 13,999.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508.42 : 20,211.86 = 9,356.52 : x
  2. Step 2: Convert to fraction form
    13,508.42/20,211.86 = 9,356.52/x
  3. Step 3: Cross multiply
    13,508.42x = 20,211.86 × 9,356.52
  4. Step 4: Simplify right side
    13,508.42x = 189,112,625.54
  5. Step 5: Solve for x
    x = 189,112,625.54/13,508.42
  6. Step 6: Final answer
    x = 13,999.62

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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.