Home / 10,183.35-15,275.72-2,787.20

Finding the Fourth Proportional to 10,183.35, 15,275.72 and 2,787.20

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Solution

The fourth proportional to 10,183.35, 15,275.72 and 2,787.20 is: 4,180.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,183.35 : 15,275.72 = 2,787.20 : x
  2. Step 2: Convert to fraction form
    10,183.35/15,275.72 = 2,787.20/x
  3. Step 3: Cross multiply
    10,183.35x = 15,275.72 × 2,787.20
  4. Step 4: Simplify right side
    10,183.35x = 42,576,396.47
  5. Step 5: Solve for x
    x = 42,576,396.47/10,183.35
  6. Step 6: Final answer
    x = 4,180.98

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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.