Home / 13,193.78-19,788.84-3,332.45

Finding the Fourth Proportional to 13,193.78, 19,788.84 and 3,332.45

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Solution

The fourth proportional to 13,193.78, 19,788.84 and 3,332.45 is: 4,998.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,193.78 : 19,788.84 = 3,332.45 : x
  2. Step 2: Convert to fraction form
    13,193.78/19,788.84 = 3,332.45/x
  3. Step 3: Cross multiply
    13,193.78x = 19,788.84 × 3,332.45
  4. Step 4: Simplify right side
    13,193.78x = 65,945,319.86
  5. Step 5: Solve for x
    x = 65,945,319.86/13,193.78
  6. Step 6: Final answer
    x = 4,998.21

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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.