Home / 10,090.74-15,136.20-8,328.86

Finding the Fourth Proportional to 10,090.74, 15,136.20 and 8,328.86

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Solution

The fourth proportional to 10,090.74, 15,136.20 and 8,328.86 is: 12,493.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,090.74 : 15,136.20 = 8,328.86 : x
  2. Step 2: Convert to fraction form
    10,090.74/15,136.20 = 8,328.86/x
  3. Step 3: Cross multiply
    10,090.74x = 15,136.20 × 8,328.86
  4. Step 4: Simplify right side
    10,090.74x = 126,067,215.05
  5. Step 5: Solve for x
    x = 126,067,215.05/10,090.74
  6. Step 6: Final answer
    x = 12,493.36

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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.