Home / 13,518.43-20,278.32-5,195.52

Finding the Fourth Proportional to 13,518.43, 20,278.32 and 5,195.52

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Solution

The fourth proportional to 13,518.43, 20,278.32 and 5,195.52 is: 7,793.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.43 : 20,278.32 = 5,195.52 : x
  2. Step 2: Convert to fraction form
    13,518.43/20,278.32 = 5,195.52/x
  3. Step 3: Cross multiply
    13,518.43x = 20,278.32 × 5,195.52
  4. Step 4: Simplify right side
    13,518.43x = 105,356,417.13
  5. Step 5: Solve for x
    x = 105,356,417.13/13,518.43
  6. Step 6: Final answer
    x = 7,793.54

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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.