Home / 10,889.30-16,335.39-3,491.30

Finding the Fourth Proportional to 10,889.30, 16,335.39 and 3,491.30

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Solution

The fourth proportional to 10,889.30, 16,335.39 and 3,491.30 is: 5,237.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.30 : 16,335.39 = 3,491.30 : x
  2. Step 2: Convert to fraction form
    10,889.30/16,335.39 = 3,491.30/x
  3. Step 3: Cross multiply
    10,889.30x = 16,335.39 × 3,491.30
  4. Step 4: Simplify right side
    10,889.30x = 57,031,747.11
  5. Step 5: Solve for x
    x = 57,031,747.11/10,889.30
  6. Step 6: Final answer
    x = 5,237.41

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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.