Home / 18,536.40-27,805.06-5,388.90

Finding the Fourth Proportional to 18,536.40, 27,805.06 and 5,388.90

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Solution

The fourth proportional to 18,536.40, 27,805.06 and 5,388.90 is: 8,083.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,536.40 : 27,805.06 = 5,388.90 : x
  2. Step 2: Convert to fraction form
    18,536.40/27,805.06 = 5,388.90/x
  3. Step 3: Cross multiply
    18,536.40x = 27,805.06 × 5,388.90
  4. Step 4: Simplify right side
    18,536.40x = 149,838,687.83
  5. Step 5: Solve for x
    x = 149,838,687.83/18,536.40
  6. Step 6: Final answer
    x = 8,083.48

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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.