Home / 11,209.20-16,788.32-5,370

Finding the Fourth Proportional to 11,209.20, 16,788.32 and 5,370

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Solution

The fourth proportional to 11,209.20, 16,788.32 and 5,370 is: 8,042.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,209.20 : 16,788.32 = 5,370 : x
  2. Step 2: Convert to fraction form
    11,209.20/16,788.32 = 5,370/x
  3. Step 3: Cross multiply
    11,209.20x = 16,788.32 × 5,370
  4. Step 4: Simplify right side
    11,209.20x = 90,153,278.40
  5. Step 5: Solve for x
    x = 90,153,278.40/11,209.20
  6. Step 6: Final answer
    x = 8,042.79

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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.