Home / 10,910.25-15,054.90-6,129.56

Finding the Fourth Proportional to 10,910.25, 15,054.90 and 6,129.56

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Solution

The fourth proportional to 10,910.25, 15,054.90 and 6,129.56 is: 8,458.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,910.25 : 15,054.90 = 6,129.56 : x
  2. Step 2: Convert to fraction form
    10,910.25/15,054.90 = 6,129.56/x
  3. Step 3: Cross multiply
    10,910.25x = 15,054.90 × 6,129.56
  4. Step 4: Simplify right side
    10,910.25x = 92,279,806.92
  5. Step 5: Solve for x
    x = 92,279,806.92/10,910.25
  6. Step 6: Final answer
    x = 8,458.08

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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.