Home / 10,431.35-15,648.99-4,191.86

Finding the Fourth Proportional to 10,431.35, 15,648.99 and 4,191.86

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Solution

The fourth proportional to 10,431.35, 15,648.99 and 4,191.86 is: 6,288.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.35 : 15,648.99 = 4,191.86 : x
  2. Step 2: Convert to fraction form
    10,431.35/15,648.99 = 4,191.86/x
  3. Step 3: Cross multiply
    10,431.35x = 15,648.99 × 4,191.86
  4. Step 4: Simplify right side
    10,431.35x = 65,598,398.62
  5. Step 5: Solve for x
    x = 65,598,398.62/10,431.35
  6. Step 6: Final answer
    x = 6,288.58

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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.