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Finding the Fourth Proportional to 8,775.92, 13,149.30 and 7,667.84

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Solution

The fourth proportional to 8,775.92, 13,149.30 and 7,667.84 is: 11,489.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,775.92 : 13,149.30 = 7,667.84 : x
  2. Step 2: Convert to fraction form
    8,775.92/13,149.30 = 7,667.84/x
  3. Step 3: Cross multiply
    8,775.92x = 13,149.30 × 7,667.84
  4. Step 4: Simplify right side
    8,775.92x = 100,826,728.51
  5. Step 5: Solve for x
    x = 100,826,728.51/8,775.92
  6. Step 6: Final answer
    x = 11,489.02

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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.