Home / 8,160.67-12,239.38-2,315.71

Finding the Fourth Proportional to 8,160.67, 12,239.38 and 2,315.71

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Solution

The fourth proportional to 8,160.67, 12,239.38 and 2,315.71 is: 3,473.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.67 : 12,239.38 = 2,315.71 : x
  2. Step 2: Convert to fraction form
    8,160.67/12,239.38 = 2,315.71/x
  3. Step 3: Cross multiply
    8,160.67x = 12,239.38 × 2,315.71
  4. Step 4: Simplify right side
    8,160.67x = 28,342,854.66
  5. Step 5: Solve for x
    x = 28,342,854.66/8,160.67
  6. Step 6: Final answer
    x = 3,473.10

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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.