Home / 18,974.70-28,459.36-11,933.24

Finding the Fourth Proportional to 18,974.70, 28,459.36 and 11,933.24

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Solution

The fourth proportional to 18,974.70, 28,459.36 and 11,933.24 is: 17,898.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,974.70 : 28,459.36 = 11,933.24 : x
  2. Step 2: Convert to fraction form
    18,974.70/28,459.36 = 11,933.24/x
  3. Step 3: Cross multiply
    18,974.70x = 28,459.36 × 11,933.24
  4. Step 4: Simplify right side
    18,974.70x = 339,612,245.75
  5. Step 5: Solve for x
    x = 339,612,245.75/18,974.70
  6. Step 6: Final answer
    x = 17,898.16

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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.