Home / 10,930.44-15,083.46-6,688.56

Finding the Fourth Proportional to 10,930.44, 15,083.46 and 6,688.56

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Solution

The fourth proportional to 10,930.44, 15,083.46 and 6,688.56 is: 9,229.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,930.44 : 15,083.46 = 6,688.56 : x
  2. Step 2: Convert to fraction form
    10,930.44/15,083.46 = 6,688.56/x
  3. Step 3: Cross multiply
    10,930.44x = 15,083.46 × 6,688.56
  4. Step 4: Simplify right side
    10,930.44x = 100,886,627.22
  5. Step 5: Solve for x
    x = 100,886,627.22/10,930.44
  6. Step 6: Final answer
    x = 9,229.88

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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.