Home / 10,912.69-15,058.31-6,131.53

Finding the Fourth Proportional to 10,912.69, 15,058.31 and 6,131.53

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Solution

The fourth proportional to 10,912.69, 15,058.31 and 6,131.53 is: 8,460.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912.69 : 15,058.31 = 6,131.53 : x
  2. Step 2: Convert to fraction form
    10,912.69/15,058.31 = 6,131.53/x
  3. Step 3: Cross multiply
    10,912.69x = 15,058.31 × 6,131.53
  4. Step 4: Simplify right side
    10,912.69x = 92,330,467.68
  5. Step 5: Solve for x
    x = 92,330,467.68/10,912.69
  6. Step 6: Final answer
    x = 8,460.83

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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.