Home / 18,949.52-28,415.64-11,160.56

Finding the Fourth Proportional to 18,949.52, 28,415.64 and 11,160.56

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Solution

The fourth proportional to 18,949.52, 28,415.64 and 11,160.56 is: 16,735.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,949.52 : 28,415.64 = 11,160.56 : x
  2. Step 2: Convert to fraction form
    18,949.52/28,415.64 = 11,160.56/x
  3. Step 3: Cross multiply
    18,949.52x = 28,415.64 × 11,160.56
  4. Step 4: Simplify right side
    18,949.52x = 317,134,455.16
  5. Step 5: Solve for x
    x = 317,134,455.16/18,949.52
  6. Step 6: Final answer
    x = 16,735.75

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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.