Home / 18,732.96-28,091.16-9,965.79

Finding the Fourth Proportional to 18,732.96, 28,091.16 and 9,965.79

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Solution

The fourth proportional to 18,732.96, 28,091.16 and 9,965.79 is: 14,944.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,732.96 : 28,091.16 = 9,965.79 : x
  2. Step 2: Convert to fraction form
    18,732.96/28,091.16 = 9,965.79/x
  3. Step 3: Cross multiply
    18,732.96x = 28,091.16 × 9,965.79
  4. Step 4: Simplify right side
    18,732.96x = 279,950,601.42
  5. Step 5: Solve for x
    x = 279,950,601.42/18,732.96
  6. Step 6: Final answer
    x = 14,944.28

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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.