Home / 18,908.11-28,379.67-9,554.71

Finding the Fourth Proportional to 18,908.11, 28,379.67 and 9,554.71

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Solution

The fourth proportional to 18,908.11, 28,379.67 and 9,554.71 is: 14,340.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,908.11 : 28,379.67 = 9,554.71 : x
  2. Step 2: Convert to fraction form
    18,908.11/28,379.67 = 9,554.71/x
  3. Step 3: Cross multiply
    18,908.11x = 28,379.67 × 9,554.71
  4. Step 4: Simplify right side
    18,908.11x = 271,159,516.75
  5. Step 5: Solve for x
    x = 271,159,516.75/18,908.11
  6. Step 6: Final answer
    x = 14,340.91

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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.