Home / 9,232.72-12,743.88-6,439.12

Finding the Fourth Proportional to 9,232.72, 12,743.88 and 6,439.12

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Solution

The fourth proportional to 9,232.72, 12,743.88 and 6,439.12 is: 8,887.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,232.72 : 12,743.88 = 6,439.12 : x
  2. Step 2: Convert to fraction form
    9,232.72/12,743.88 = 6,439.12/x
  3. Step 3: Cross multiply
    9,232.72x = 12,743.88 × 6,439.12
  4. Step 4: Simplify right side
    9,232.72x = 82,059,372.59
  5. Step 5: Solve for x
    x = 82,059,372.59/9,232.72
  6. Step 6: Final answer
    x = 8,887.89

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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.