Home / 8,160.09-12,240.45-2,613.66

Finding the Fourth Proportional to 8,160.09, 12,240.45 and 2,613.66

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Solution

The fourth proportional to 8,160.09, 12,240.45 and 2,613.66 is: 3,920.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.09 : 12,240.45 = 2,613.66 : x
  2. Step 2: Convert to fraction form
    8,160.09/12,240.45 = 2,613.66/x
  3. Step 3: Cross multiply
    8,160.09x = 12,240.45 × 2,613.66
  4. Step 4: Simplify right side
    8,160.09x = 31,992,374.55
  5. Step 5: Solve for x
    x = 31,992,374.55/8,160.09
  6. Step 6: Final answer
    x = 3,920.59

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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.