Home / 11,118.60-16,653.60-8,634.06

Finding the Fourth Proportional to 11,118.60, 16,653.60 and 8,634.06

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Solution

The fourth proportional to 11,118.60, 16,653.60 and 8,634.06 is: 12,932.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.60 : 16,653.60 = 8,634.06 : x
  2. Step 2: Convert to fraction form
    11,118.60/16,653.60 = 8,634.06/x
  3. Step 3: Cross multiply
    11,118.60x = 16,653.60 × 8,634.06
  4. Step 4: Simplify right side
    11,118.60x = 143,788,181.62
  5. Step 5: Solve for x
    x = 143,788,181.62/11,118.60
  6. Step 6: Final answer
    x = 12,932.22

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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.