Home / 11,536.05-15,917.82-6,430.46

Finding the Fourth Proportional to 11,536.05, 15,917.82 and 6,430.46

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Solution

The fourth proportional to 11,536.05, 15,917.82 and 6,430.46 is: 8,872.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,536.05 : 15,917.82 = 6,430.46 : x
  2. Step 2: Convert to fraction form
    11,536.05/15,917.82 = 6,430.46/x
  3. Step 3: Cross multiply
    11,536.05x = 15,917.82 × 6,430.46
  4. Step 4: Simplify right side
    11,536.05x = 102,358,801.09
  5. Step 5: Solve for x
    x = 102,358,801.09/11,536.05
  6. Step 6: Final answer
    x = 8,872.95

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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.