Home / 11,121.16-16,700.83-9,874.57

Finding the Fourth Proportional to 11,121.16, 16,700.83 and 9,874.57

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Solution

The fourth proportional to 11,121.16, 16,700.83 and 9,874.57 is: 14,828.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.16 : 16,700.83 = 9,874.57 : x
  2. Step 2: Convert to fraction form
    11,121.16/16,700.83 = 9,874.57/x
  3. Step 3: Cross multiply
    11,121.16x = 16,700.83 × 9,874.57
  4. Step 4: Simplify right side
    11,121.16x = 164,913,514.89
  5. Step 5: Solve for x
    x = 164,913,514.89/11,121.16
  6. Step 6: Final answer
    x = 14,828.81

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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.