Home / 8,106.67-12,155.14-3,170.43

Finding the Fourth Proportional to 8,106.67, 12,155.14 and 3,170.43

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Solution

The fourth proportional to 8,106.67, 12,155.14 and 3,170.43 is: 4,753.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.67 : 12,155.14 = 3,170.43 : x
  2. Step 2: Convert to fraction form
    8,106.67/12,155.14 = 3,170.43/x
  3. Step 3: Cross multiply
    8,106.67x = 12,155.14 × 3,170.43
  4. Step 4: Simplify right side
    8,106.67x = 38,537,020.51
  5. Step 5: Solve for x
    x = 38,537,020.51/8,106.67
  6. Step 6: Final answer
    x = 4,753.74

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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.