Home / 8,109.64-11,194.23-5,127.49

Finding the Fourth Proportional to 8,109.64, 11,194.23 and 5,127.49

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Solution

The fourth proportional to 8,109.64, 11,194.23 and 5,127.49 is: 7,077.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.64 : 11,194.23 = 5,127.49 : x
  2. Step 2: Convert to fraction form
    8,109.64/11,194.23 = 5,127.49/x
  3. Step 3: Cross multiply
    8,109.64x = 11,194.23 × 5,127.49
  4. Step 4: Simplify right side
    8,109.64x = 57,398,302.38
  5. Step 5: Solve for x
    x = 57,398,302.38/8,109.64
  6. Step 6: Final answer
    x = 7,077.79

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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.