Home / 8,113.31-12,170.05-3,183.45

Finding the Fourth Proportional to 8,113.31, 12,170.05 and 3,183.45

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Solution

The fourth proportional to 8,113.31, 12,170.05 and 3,183.45 is: 4,775.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,113.31 : 12,170.05 = 3,183.45 : x
  2. Step 2: Convert to fraction form
    8,113.31/12,170.05 = 3,183.45/x
  3. Step 3: Cross multiply
    8,113.31x = 12,170.05 × 3,183.45
  4. Step 4: Simplify right side
    8,113.31x = 38,742,760.53
  5. Step 5: Solve for x
    x = 38,742,760.53/8,113.31
  6. Step 6: Final answer
    x = 4,775.21

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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.