Home / 13,194.48-19,819.28-11,219.81

Finding the Fourth Proportional to 13,194.48, 19,819.28 and 11,219.81

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Solution

The fourth proportional to 13,194.48, 19,819.28 and 11,219.81 is: 16,853.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,194.48 : 19,819.28 = 11,219.81 : x
  2. Step 2: Convert to fraction form
    13,194.48/19,819.28 = 11,219.81/x
  3. Step 3: Cross multiply
    13,194.48x = 19,819.28 × 11,219.81
  4. Step 4: Simplify right side
    13,194.48x = 222,368,400.74
  5. Step 5: Solve for x
    x = 222,368,400.74/13,194.48
  6. Step 6: Final answer
    x = 16,853.14

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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.