Home / 8,961.79-12,367.19-4,982.87

Finding the Fourth Proportional to 8,961.79, 12,367.19 and 4,982.87

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Solution

The fourth proportional to 8,961.79, 12,367.19 and 4,982.87 is: 6,876.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961.79 : 12,367.19 = 4,982.87 : x
  2. Step 2: Convert to fraction form
    8,961.79/12,367.19 = 4,982.87/x
  3. Step 3: Cross multiply
    8,961.79x = 12,367.19 × 4,982.87
  4. Step 4: Simplify right side
    8,961.79x = 61,624,052.96
  5. Step 5: Solve for x
    x = 61,624,052.96/8,961.79
  6. Step 6: Final answer
    x = 6,876.31

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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.