Home / 18,215.06-27,317.33-7,687.44

Finding the Fourth Proportional to 18,215.06, 27,317.33 and 7,687.44

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Solution

The fourth proportional to 18,215.06, 27,317.33 and 7,687.44 is: 11,528.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215.06 : 27,317.33 = 7,687.44 : x
  2. Step 2: Convert to fraction form
    18,215.06/27,317.33 = 7,687.44/x
  3. Step 3: Cross multiply
    18,215.06x = 27,317.33 × 7,687.44
  4. Step 4: Simplify right side
    18,215.06x = 210,000,354.55
  5. Step 5: Solve for x
    x = 210,000,354.55/18,215.06
  6. Step 6: Final answer
    x = 11,528.94

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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.