Home / 10,431.16-15,644.83-4,190.92

Finding the Fourth Proportional to 10,431.16, 15,644.83 and 4,190.92

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Solution

The fourth proportional to 10,431.16, 15,644.83 and 4,190.92 is: 6,285.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.16 : 15,644.83 = 4,190.92 : x
  2. Step 2: Convert to fraction form
    10,431.16/15,644.83 = 4,190.92/x
  3. Step 3: Cross multiply
    10,431.16x = 15,644.83 × 4,190.92
  4. Step 4: Simplify right side
    10,431.16x = 65,566,230.94
  5. Step 5: Solve for x
    x = 65,566,230.94/10,431.16
  6. Step 6: Final answer
    x = 6,285.61

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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.