Home / 8,114.04-11,186.22-5,128.38

Finding the Fourth Proportional to 8,114.04, 11,186.22 and 5,128.38

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Solution

The fourth proportional to 8,114.04, 11,186.22 and 5,128.38 is: 7,070.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,114.04 : 11,186.22 = 5,128.38 : x
  2. Step 2: Convert to fraction form
    8,114.04/11,186.22 = 5,128.38/x
  3. Step 3: Cross multiply
    8,114.04x = 11,186.22 × 5,128.38
  4. Step 4: Simplify right side
    8,114.04x = 57,367,186.92
  5. Step 5: Solve for x
    x = 57,367,186.92/8,114.04
  6. Step 6: Final answer
    x = 7,070.11

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Half scale
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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.