Home / 11,214.45-16,822.28-8,085.83

Finding the Fourth Proportional to 11,214.45, 16,822.28 and 8,085.83

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Solution

The fourth proportional to 11,214.45, 16,822.28 and 8,085.83 is: 12,129.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,214.45 : 16,822.28 = 8,085.83 : x
  2. Step 2: Convert to fraction form
    11,214.45/16,822.28 = 8,085.83/x
  3. Step 3: Cross multiply
    11,214.45x = 16,822.28 × 8,085.83
  4. Step 4: Simplify right side
    11,214.45x = 136,022,032.40
  5. Step 5: Solve for x
    x = 136,022,032.40/11,214.45
  6. Step 6: Final answer
    x = 12,129.18

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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.