Home / 9,431.66-14,147.58-2,857.88

Finding the Fourth Proportional to 9,431.66, 14,147.58 and 2,857.88

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Solution

The fourth proportional to 9,431.66, 14,147.58 and 2,857.88 is: 4,286.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431.66 : 14,147.58 = 2,857.88 : x
  2. Step 2: Convert to fraction form
    9,431.66/14,147.58 = 2,857.88/x
  3. Step 3: Cross multiply
    9,431.66x = 14,147.58 × 2,857.88
  4. Step 4: Simplify right side
    9,431.66x = 40,432,085.93
  5. Step 5: Solve for x
    x = 40,432,085.93/9,431.66
  6. Step 6: Final answer
    x = 4,286.85

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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.