Home / 18,936.28-28,408.52-7,249.50

Finding the Fourth Proportional to 18,936.28, 28,408.52 and 7,249.50

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Solution

The fourth proportional to 18,936.28, 28,408.52 and 7,249.50 is: 10,875.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936.28 : 28,408.52 = 7,249.50 : x
  2. Step 2: Convert to fraction form
    18,936.28/28,408.52 = 7,249.50/x
  3. Step 3: Cross multiply
    18,936.28x = 28,408.52 × 7,249.50
  4. Step 4: Simplify right side
    18,936.28x = 205,947,583.86
  5. Step 5: Solve for x
    x = 205,947,583.86/18,936.28
  6. Step 6: Final answer
    x = 10,875.82

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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.