Home / 10,122.72-15,183.48-3,885.72

Finding the Fourth Proportional to 10,122.72, 15,183.48 and 3,885.72

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Solution

The fourth proportional to 10,122.72, 15,183.48 and 3,885.72 is: 5,828.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,122.72 : 15,183.48 = 3,885.72 : x
  2. Step 2: Convert to fraction form
    10,122.72/15,183.48 = 3,885.72/x
  3. Step 3: Cross multiply
    10,122.72x = 15,183.48 × 3,885.72
  4. Step 4: Simplify right side
    10,122.72x = 58,998,751.91
  5. Step 5: Solve for x
    x = 58,998,751.91/10,122.72
  6. Step 6: Final answer
    x = 5,828.35

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1.5x scale

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.