Home / 11,187.69-15,441.89-6,474.71

Finding the Fourth Proportional to 11,187.69, 15,441.89 and 6,474.71

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Solution

The fourth proportional to 11,187.69, 15,441.89 and 6,474.71 is: 8,936.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.69 : 15,441.89 = 6,474.71 : x
  2. Step 2: Convert to fraction form
    11,187.69/15,441.89 = 6,474.71/x
  3. Step 3: Cross multiply
    11,187.69x = 15,441.89 × 6,474.71
  4. Step 4: Simplify right side
    11,187.69x = 99,981,650.02
  5. Step 5: Solve for x
    x = 99,981,650.02/11,187.69
  6. Step 6: Final answer
    x = 8,936.76

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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.