Home / 10,155.64-15,234.90-3,136.23

Finding the Fourth Proportional to 10,155.64, 15,234.90 and 3,136.23

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Solution

The fourth proportional to 10,155.64, 15,234.90 and 3,136.23 is: 4,704.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,155.64 : 15,234.90 = 3,136.23 : x
  2. Step 2: Convert to fraction form
    10,155.64/15,234.90 = 3,136.23/x
  3. Step 3: Cross multiply
    10,155.64x = 15,234.90 × 3,136.23
  4. Step 4: Simplify right side
    10,155.64x = 47,780,150.43
  5. Step 5: Solve for x
    x = 47,780,150.43/10,155.64
  6. Step 6: Final answer
    x = 4,704.79

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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.