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Finding the Fourth Proportional to 8,869.92, 12,241.05 and 4,891.04

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Solution

The fourth proportional to 8,869.92, 12,241.05 and 4,891.04 is: 6,749.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.92 : 12,241.05 = 4,891.04 : x
  2. Step 2: Convert to fraction form
    8,869.92/12,241.05 = 4,891.04/x
  3. Step 3: Cross multiply
    8,869.92x = 12,241.05 × 4,891.04
  4. Step 4: Simplify right side
    8,869.92x = 59,871,403.99
  5. Step 5: Solve for x
    x = 59,871,403.99/8,869.92
  6. Step 6: Final answer
    x = 6,749.94

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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.