Home / 10,120.96-15,183.68-4,857.76

Finding the Fourth Proportional to 10,120.96, 15,183.68 and 4,857.76

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Solution

The fourth proportional to 10,120.96, 15,183.68 and 4,857.76 is: 7,287.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.96 : 15,183.68 = 4,857.76 : x
  2. Step 2: Convert to fraction form
    10,120.96/15,183.68 = 4,857.76/x
  3. Step 3: Cross multiply
    10,120.96x = 15,183.68 × 4,857.76
  4. Step 4: Simplify right side
    10,120.96x = 73,758,673.36
  5. Step 5: Solve for x
    x = 73,758,673.36/10,120.96
  6. Step 6: Final answer
    x = 7,287.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.