Home / 10,161.22-14,021.20-5,913.66

Finding the Fourth Proportional to 10,161.22, 14,021.20 and 5,913.66

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Solution

The fourth proportional to 10,161.22, 14,021.20 and 5,913.66 is: 8,160.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,161.22 : 14,021.20 = 5,913.66 : x
  2. Step 2: Convert to fraction form
    10,161.22/14,021.20 = 5,913.66/x
  3. Step 3: Cross multiply
    10,161.22x = 14,021.20 × 5,913.66
  4. Step 4: Simplify right side
    10,161.22x = 82,916,609.59
  5. Step 5: Solve for x
    x = 82,916,609.59/10,161.22
  6. Step 6: Final answer
    x = 8,160.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.