Home / 18,245.28-27,372.56-5,097.68

Finding the Fourth Proportional to 18,245.28, 27,372.56 and 5,097.68

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Solution

The fourth proportional to 18,245.28, 27,372.56 and 5,097.68 is: 7,647.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.28 : 27,372.56 = 5,097.68 : x
  2. Step 2: Convert to fraction form
    18,245.28/27,372.56 = 5,097.68/x
  3. Step 3: Cross multiply
    18,245.28x = 27,372.56 × 5,097.68
  4. Step 4: Simplify right side
    18,245.28x = 139,536,551.66
  5. Step 5: Solve for x
    x = 139,536,551.66/18,245.28
  6. Step 6: Final answer
    x = 7,647.82

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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.