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Finding the Fourth Proportional to 8,903, 12,285.66 and 4,923.88

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Solution

The fourth proportional to 8,903, 12,285.66 and 4,923.88 is: 6,794.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,903 : 12,285.66 = 4,923.88 : x
  2. Step 2: Convert to fraction form
    8,903/12,285.66 = 4,923.88/x
  3. Step 3: Cross multiply
    8,903x = 12,285.66 × 4,923.88
  4. Step 4: Simplify right side
    8,903x = 60,493,115.56
  5. Step 5: Solve for x
    x = 60,493,115.56/8,903
  6. Step 6: Final answer
    x = 6,794.69

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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.