Home / 11,100.47-16,650.54-2,780.46

Finding the Fourth Proportional to 11,100.47, 16,650.54 and 2,780.46

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Solution

The fourth proportional to 11,100.47, 16,650.54 and 2,780.46 is: 4,170.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,100.47 : 16,650.54 = 2,780.46 : x
  2. Step 2: Convert to fraction form
    11,100.47/16,650.54 = 2,780.46/x
  3. Step 3: Cross multiply
    11,100.47x = 16,650.54 × 2,780.46
  4. Step 4: Simplify right side
    11,100.47x = 46,296,160.45
  5. Step 5: Solve for x
    x = 46,296,160.45/11,100.47
  6. Step 6: Final answer
    x = 4,170.65

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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.