Home / 11,201.52-16,802.28-8,142.96

Finding the Fourth Proportional to 11,201.52, 16,802.28 and 8,142.96

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Solution

The fourth proportional to 11,201.52, 16,802.28 and 8,142.96 is: 12,214.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,201.52 : 16,802.28 = 8,142.96 : x
  2. Step 2: Convert to fraction form
    11,201.52/16,802.28 = 8,142.96/x
  3. Step 3: Cross multiply
    11,201.52x = 16,802.28 × 8,142.96
  4. Step 4: Simplify right side
    11,201.52x = 136,820,293.95
  5. Step 5: Solve for x
    x = 136,820,293.95/11,201.52
  6. Step 6: Final answer
    x = 12,214.44

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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.