Home / 12,832.02-19,215.90-8,137.80

Finding the Fourth Proportional to 12,832.02, 19,215.90 and 8,137.80

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Solution

The fourth proportional to 12,832.02, 19,215.90 and 8,137.80 is: 12,186.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,832.02 : 19,215.90 = 8,137.80 : x
  2. Step 2: Convert to fraction form
    12,832.02/19,215.90 = 8,137.80/x
  3. Step 3: Cross multiply
    12,832.02x = 19,215.90 × 8,137.80
  4. Step 4: Simplify right side
    12,832.02x = 156,375,151.02
  5. Step 5: Solve for x
    x = 156,375,151.02/12,832.02
  6. Step 6: Final answer
    x = 12,186.32

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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.