Home / 11,121.72-16,695.72-4,553.16

Finding the Fourth Proportional to 11,121.72, 16,695.72 and 4,553.16

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Solution

The fourth proportional to 11,121.72, 16,695.72 and 4,553.16 is: 6,835.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.72 : 16,695.72 = 4,553.16 : x
  2. Step 2: Convert to fraction form
    11,121.72/16,695.72 = 4,553.16/x
  3. Step 3: Cross multiply
    11,121.72x = 16,695.72 × 4,553.16
  4. Step 4: Simplify right side
    11,121.72x = 76,018,284.48
  5. Step 5: Solve for x
    x = 76,018,284.48/11,121.72
  6. Step 6: Final answer
    x = 6,835.12

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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.