Home / 18,279.28-27,429.68-7,748.53

Finding the Fourth Proportional to 18,279.28, 27,429.68 and 7,748.53

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Solution

The fourth proportional to 18,279.28, 27,429.68 and 7,748.53 is: 11,627.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.28 : 27,429.68 = 7,748.53 : x
  2. Step 2: Convert to fraction form
    18,279.28/27,429.68 = 7,748.53/x
  3. Step 3: Cross multiply
    18,279.28x = 27,429.68 × 7,748.53
  4. Step 4: Simplify right side
    18,279.28x = 212,539,698.37
  5. Step 5: Solve for x
    x = 212,539,698.37/18,279.28
  6. Step 6: Final answer
    x = 11,627.36

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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.