Home / 11,311.48-15,606.68-8,914.02

Finding the Fourth Proportional to 11,311.48, 15,606.68 and 8,914.02

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Solution

The fourth proportional to 11,311.48, 15,606.68 and 8,914.02 is: 12,298.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311.48 : 15,606.68 = 8,914.02 : x
  2. Step 2: Convert to fraction form
    11,311.48/15,606.68 = 8,914.02/x
  3. Step 3: Cross multiply
    11,311.48x = 15,606.68 × 8,914.02
  4. Step 4: Simplify right side
    11,311.48x = 139,118,179.62
  5. Step 5: Solve for x
    x = 139,118,179.62/11,311.48
  6. Step 6: Final answer
    x = 12,298.85

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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.