Home / 26,613.76-39,920.80-6,890.96

Finding the Fourth Proportional to 26,613.76, 39,920.80 and 6,890.96

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Solution

The fourth proportional to 26,613.76, 39,920.80 and 6,890.96 is: 10,336.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,613.76 : 39,920.80 = 6,890.96 : x
  2. Step 2: Convert to fraction form
    26,613.76/39,920.80 = 6,890.96/x
  3. Step 3: Cross multiply
    26,613.76x = 39,920.80 × 6,890.96
  4. Step 4: Simplify right side
    26,613.76x = 275,092,635.97
  5. Step 5: Solve for x
    x = 275,092,635.97/26,613.76
  6. Step 6: Final answer
    x = 10,336.48

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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.