Home / 11,187.27-15,438.48-6,151.81

Finding the Fourth Proportional to 11,187.27, 15,438.48 and 6,151.81

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Solution

The fourth proportional to 11,187.27, 15,438.48 and 6,151.81 is: 8,489.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.27 : 15,438.48 = 6,151.81 : x
  2. Step 2: Convert to fraction form
    11,187.27/15,438.48 = 6,151.81/x
  3. Step 3: Cross multiply
    11,187.27x = 15,438.48 × 6,151.81
  4. Step 4: Simplify right side
    11,187.27x = 94,974,595.65
  5. Step 5: Solve for x
    x = 94,974,595.65/11,187.27
  6. Step 6: Final answer
    x = 8,489.53

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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.