Home / 11,008.86-15,198.12-8,485.44

Finding the Fourth Proportional to 11,008.86, 15,198.12 and 8,485.44

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Solution

The fourth proportional to 11,008.86, 15,198.12 and 8,485.44 is: 11,714.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,008.86 : 15,198.12 = 8,485.44 : x
  2. Step 2: Convert to fraction form
    11,008.86/15,198.12 = 8,485.44/x
  3. Step 3: Cross multiply
    11,008.86x = 15,198.12 × 8,485.44
  4. Step 4: Simplify right side
    11,008.86x = 128,962,735.37
  5. Step 5: Solve for x
    x = 128,962,735.37/11,008.86
  6. Step 6: Final answer
    x = 11,714.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.