Home / 11,121.42-16,701.20-9,874.82

Finding the Fourth Proportional to 11,121.42, 16,701.20 and 9,874.82

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Solution

The fourth proportional to 11,121.42, 16,701.20 and 9,874.82 is: 14,829.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.42 : 16,701.20 = 9,874.82 : x
  2. Step 2: Convert to fraction form
    11,121.42/16,701.20 = 9,874.82/x
  3. Step 3: Cross multiply
    11,121.42x = 16,701.20 × 9,874.82
  4. Step 4: Simplify right side
    11,121.42x = 164,921,343.78
  5. Step 5: Solve for x
    x = 164,921,343.78/11,121.42
  6. Step 6: Final answer
    x = 14,829.16

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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.