Home / 10,991.42-16,494.28-4,757.52

Finding the Fourth Proportional to 10,991.42, 16,494.28 and 4,757.52

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Solution

The fourth proportional to 10,991.42, 16,494.28 and 4,757.52 is: 7,139.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,991.42 : 16,494.28 = 4,757.52 : x
  2. Step 2: Convert to fraction form
    10,991.42/16,494.28 = 4,757.52/x
  3. Step 3: Cross multiply
    10,991.42x = 16,494.28 × 4,757.52
  4. Step 4: Simplify right side
    10,991.42x = 78,471,866.99
  5. Step 5: Solve for x
    x = 78,471,866.99/10,991.42
  6. Step 6: Final answer
    x = 7,139.37

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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.