Home / 8,760.92-13,139.60-3,212.37

Finding the Fourth Proportional to 8,760.92, 13,139.60 and 3,212.37

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Solution

The fourth proportional to 8,760.92, 13,139.60 and 3,212.37 is: 4,817.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.92 : 13,139.60 = 3,212.37 : x
  2. Step 2: Convert to fraction form
    8,760.92/13,139.60 = 3,212.37/x
  3. Step 3: Cross multiply
    8,760.92x = 13,139.60 × 3,212.37
  4. Step 4: Simplify right side
    8,760.92x = 42,209,240.79
  5. Step 5: Solve for x
    x = 42,209,240.79/8,760.92
  6. Step 6: Final answer
    x = 4,817.90

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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.