Home / 11,645.10-16,079.22-7,170.66

Finding the Fourth Proportional to 11,645.10, 16,079.22 and 7,170.66

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Solution

The fourth proportional to 11,645.10, 16,079.22 and 7,170.66 is: 9,901.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,645.10 : 16,079.22 = 7,170.66 : x
  2. Step 2: Convert to fraction form
    11,645.10/16,079.22 = 7,170.66/x
  3. Step 3: Cross multiply
    11,645.10x = 16,079.22 × 7,170.66
  4. Step 4: Simplify right side
    11,645.10x = 115,298,619.69
  5. Step 5: Solve for x
    x = 115,298,619.69/11,645.10
  6. Step 6: Final answer
    x = 9,901.04

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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.