Home / 18,933.75-28,408.68-7,848.50

Finding the Fourth Proportional to 18,933.75, 28,408.68 and 7,848.50

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Solution

The fourth proportional to 18,933.75, 28,408.68 and 7,848.50 is: 11,776.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.75 : 28,408.68 = 7,848.50 : x
  2. Step 2: Convert to fraction form
    18,933.75/28,408.68 = 7,848.50/x
  3. Step 3: Cross multiply
    18,933.75x = 28,408.68 × 7,848.50
  4. Step 4: Simplify right side
    18,933.75x = 222,965,382.94
  5. Step 5: Solve for x
    x = 222,965,382.94/18,933.75
  6. Step 6: Final answer
    x = 11,776.08

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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.