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Finding the Fourth Proportional to 9,234.87, 12,739.77 and 6,715.89

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Solution

The fourth proportional to 9,234.87, 12,739.77 and 6,715.89 is: 9,264.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,234.87 : 12,739.77 = 6,715.89 : x
  2. Step 2: Convert to fraction form
    9,234.87/12,739.77 = 6,715.89/x
  3. Step 3: Cross multiply
    9,234.87x = 12,739.77 × 6,715.89
  4. Step 4: Simplify right side
    9,234.87x = 85,558,893.95
  5. Step 5: Solve for x
    x = 85,558,893.95/9,234.87
  6. Step 6: Final answer
    x = 9,264.76

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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.