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Finding the Fourth Proportional to 8,902.68, 12,285.90 and 4,923.84

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Solution

The fourth proportional to 8,902.68, 12,285.90 and 4,923.84 is: 6,795.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,902.68 : 12,285.90 = 4,923.84 : x
  2. Step 2: Convert to fraction form
    8,902.68/12,285.90 = 4,923.84/x
  3. Step 3: Cross multiply
    8,902.68x = 12,285.90 × 4,923.84
  4. Step 4: Simplify right side
    8,902.68x = 60,493,805.86
  5. Step 5: Solve for x
    x = 60,493,805.86/8,902.68
  6. Step 6: Final answer
    x = 6,795.01

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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.