Home / 8,106.18-12,157.09-3,107.46

Finding the Fourth Proportional to 8,106.18, 12,157.09 and 3,107.46

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Solution

The fourth proportional to 8,106.18, 12,157.09 and 3,107.46 is: 4,660.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.18 : 12,157.09 = 3,107.46 : x
  2. Step 2: Convert to fraction form
    8,106.18/12,157.09 = 3,107.46/x
  3. Step 3: Cross multiply
    8,106.18x = 12,157.09 × 3,107.46
  4. Step 4: Simplify right side
    8,106.18x = 37,777,708.71
  5. Step 5: Solve for x
    x = 37,777,708.71/8,106.18
  6. Step 6: Final answer
    x = 4,660.36

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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.