Home / 10,687.78-16,030.91-3,291.47

Finding the Fourth Proportional to 10,687.78, 16,030.91 and 3,291.47

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Solution

The fourth proportional to 10,687.78, 16,030.91 and 3,291.47 is: 4,936.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,687.78 : 16,030.91 = 3,291.47 : x
  2. Step 2: Convert to fraction form
    10,687.78/16,030.91 = 3,291.47/x
  3. Step 3: Cross multiply
    10,687.78x = 16,030.91 × 3,291.47
  4. Step 4: Simplify right side
    10,687.78x = 52,765,205.13
  5. Step 5: Solve for x
    x = 52,765,205.13/10,687.78
  6. Step 6: Final answer
    x = 4,936.97

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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.