Home / 11,212.05-15,360.59-10,791.66

Finding the Fourth Proportional to 11,212.05, 15,360.59 and 10,791.66

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Solution

The fourth proportional to 11,212.05, 15,360.59 and 10,791.66 is: 14,784.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,212.05 : 15,360.59 = 10,791.66 : x
  2. Step 2: Convert to fraction form
    11,212.05/15,360.59 = 10,791.66/x
  3. Step 3: Cross multiply
    11,212.05x = 15,360.59 × 10,791.66
  4. Step 4: Simplify right side
    11,212.05x = 165,766,264.68
  5. Step 5: Solve for x
    x = 165,766,264.68/11,212.05
  6. Step 6: Final answer
    x = 14,784.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.