Home / 10,121.72-15,189.44-3,548

Finding the Fourth Proportional to 10,121.72, 15,189.44 and 3,548

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Solution

The fourth proportional to 10,121.72, 15,189.44 and 3,548 is: 5,324.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121.72 : 15,189.44 = 3,548 : x
  2. Step 2: Convert to fraction form
    10,121.72/15,189.44 = 3,548/x
  3. Step 3: Cross multiply
    10,121.72x = 15,189.44 × 3,548
  4. Step 4: Simplify right side
    10,121.72x = 53,892,133.12
  5. Step 5: Solve for x
    x = 53,892,133.12/10,121.72
  6. Step 6: Final answer
    x = 5,324.40

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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.