Home / 9,224.72-12,732.84-6,431.12

Finding the Fourth Proportional to 9,224.72, 12,732.84 and 6,431.12

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Solution

The fourth proportional to 9,224.72, 12,732.84 and 6,431.12 is: 8,876.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,224.72 : 12,732.84 = 6,431.12 : x
  2. Step 2: Convert to fraction form
    9,224.72/12,732.84 = 6,431.12/x
  3. Step 3: Cross multiply
    9,224.72x = 12,732.84 × 6,431.12
  4. Step 4: Simplify right side
    9,224.72x = 81,886,421.98
  5. Step 5: Solve for x
    x = 81,886,421.98/9,224.72
  6. Step 6: Final answer
    x = 8,876.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.