Home / 10,120.80-15,183.28-4,277.44

Finding the Fourth Proportional to 10,120.80, 15,183.28 and 4,277.44

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Solution

The fourth proportional to 10,120.80, 15,183.28 and 4,277.44 is: 6,417.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.80 : 15,183.28 = 4,277.44 : x
  2. Step 2: Convert to fraction form
    10,120.80/15,183.28 = 4,277.44/x
  3. Step 3: Cross multiply
    10,120.80x = 15,183.28 × 4,277.44
  4. Step 4: Simplify right side
    10,120.80x = 64,945,569.20
  5. Step 5: Solve for x
    x = 64,945,569.20/10,120.80
  6. Step 6: Final answer
    x = 6,417.04

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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.