Home / 10,082.21-15,129.36-3,513.02

Finding the Fourth Proportional to 10,082.21, 15,129.36 and 3,513.02

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Solution

The fourth proportional to 10,082.21, 15,129.36 and 3,513.02 is: 5,271.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,082.21 : 15,129.36 = 3,513.02 : x
  2. Step 2: Convert to fraction form
    10,082.21/15,129.36 = 3,513.02/x
  3. Step 3: Cross multiply
    10,082.21x = 15,129.36 × 3,513.02
  4. Step 4: Simplify right side
    10,082.21x = 53,149,668.62
  5. Step 5: Solve for x
    x = 53,149,668.62/10,082.21
  6. Step 6: Final answer
    x = 5,271.63

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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.