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Finding the Fourth Proportional to 8,475.37, 12,713.09 and 4,089.76

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Solution

The fourth proportional to 8,475.37, 12,713.09 and 4,089.76 is: 6,134.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,475.37 : 12,713.09 = 4,089.76 : x
  2. Step 2: Convert to fraction form
    8,475.37/12,713.09 = 4,089.76/x
  3. Step 3: Cross multiply
    8,475.37x = 12,713.09 × 4,089.76
  4. Step 4: Simplify right side
    8,475.37x = 51,993,434.73
  5. Step 5: Solve for x
    x = 51,993,434.73/8,475.37
  6. Step 6: Final answer
    x = 6,134.65

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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.