Home / 11,091.69-15,306.47-6,123.69

Finding the Fourth Proportional to 11,091.69, 15,306.47 and 6,123.69

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Solution

The fourth proportional to 11,091.69, 15,306.47 and 6,123.69 is: 8,450.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,091.69 : 15,306.47 = 6,123.69 : x
  2. Step 2: Convert to fraction form
    11,091.69/15,306.47 = 6,123.69/x
  3. Step 3: Cross multiply
    11,091.69x = 15,306.47 × 6,123.69
  4. Step 4: Simplify right side
    11,091.69x = 93,732,046.66
  5. Step 5: Solve for x
    x = 93,732,046.66/11,091.69
  6. Step 6: Final answer
    x = 8,450.66

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Half scale
Find fourth proportional to 22,183.38, 30,612.93 and 12,247.38
Double scale
Find fourth proportional to 11,092.69, 15,307.84 and 6,124.69
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.