Home / 11,287.20-16,932.76-4,718

Finding the Fourth Proportional to 11,287.20, 16,932.76 and 4,718

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Solution

The fourth proportional to 11,287.20, 16,932.76 and 4,718 is: 7,077.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,287.20 : 16,932.76 = 4,718 : x
  2. Step 2: Convert to fraction form
    11,287.20/16,932.76 = 4,718/x
  3. Step 3: Cross multiply
    11,287.20x = 16,932.76 × 4,718
  4. Step 4: Simplify right side
    11,287.20x = 79,888,761.68
  5. Step 5: Solve for x
    x = 79,888,761.68/11,287.20
  6. Step 6: Final answer
    x = 7,077.82

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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.