Home / 10,913.09-16,360.38-3,890.99

Finding the Fourth Proportional to 10,913.09, 16,360.38 and 3,890.99

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Solution

The fourth proportional to 10,913.09, 16,360.38 and 3,890.99 is: 5,833.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.09 : 16,360.38 = 3,890.99 : x
  2. Step 2: Convert to fraction form
    10,913.09/16,360.38 = 3,890.99/x
  3. Step 3: Cross multiply
    10,913.09x = 16,360.38 × 3,890.99
  4. Step 4: Simplify right side
    10,913.09x = 63,658,115.88
  5. Step 5: Solve for x
    x = 63,658,115.88/10,913.09
  6. Step 6: Final answer
    x = 5,833.19

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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.