Home / 10,721.21-16,082.01-3,325.91

Finding the Fourth Proportional to 10,721.21, 16,082.01 and 3,325.91

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Solution

The fourth proportional to 10,721.21, 16,082.01 and 3,325.91 is: 4,988.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.21 : 16,082.01 = 3,325.91 : x
  2. Step 2: Convert to fraction form
    10,721.21/16,082.01 = 3,325.91/x
  3. Step 3: Cross multiply
    10,721.21x = 16,082.01 × 3,325.91
  4. Step 4: Simplify right side
    10,721.21x = 53,487,237.47
  5. Step 5: Solve for x
    x = 53,487,237.47/10,721.21
  6. Step 6: Final answer
    x = 4,988.92

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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.