Home / 11,561.91-15,939.54-7,310.85

Finding the Fourth Proportional to 11,561.91, 15,939.54 and 7,310.85

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Solution

The fourth proportional to 11,561.91, 15,939.54 and 7,310.85 is: 10,078.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,561.91 : 15,939.54 = 7,310.85 : x
  2. Step 2: Convert to fraction form
    11,561.91/15,939.54 = 7,310.85/x
  3. Step 3: Cross multiply
    11,561.91x = 15,939.54 × 7,310.85
  4. Step 4: Simplify right side
    11,561.91x = 116,531,586.01
  5. Step 5: Solve for x
    x = 116,531,586.01/11,561.91
  6. Step 6: Final answer
    x = 10,078.92

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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.