Home / 18,218.88-27,328.35-5,071.25

Finding the Fourth Proportional to 18,218.88, 27,328.35 and 5,071.25

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Solution

The fourth proportional to 18,218.88, 27,328.35 and 5,071.25 is: 7,606.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.88 : 27,328.35 = 5,071.25 : x
  2. Step 2: Convert to fraction form
    18,218.88/27,328.35 = 5,071.25/x
  3. Step 3: Cross multiply
    18,218.88x = 27,328.35 × 5,071.25
  4. Step 4: Simplify right side
    18,218.88x = 138,588,758.30
  5. Step 5: Solve for x
    x = 138,588,758.30/18,218.88
  6. Step 6: Final answer
    x = 7,606.88

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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.