Home / 11,790.08-17,689.90-7,578.04

Finding the Fourth Proportional to 11,790.08, 17,689.90 and 7,578.04

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Solution

The fourth proportional to 11,790.08, 17,689.90 and 7,578.04 is: 11,370.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,790.08 : 17,689.90 = 7,578.04 : x
  2. Step 2: Convert to fraction form
    11,790.08/17,689.90 = 7,578.04/x
  3. Step 3: Cross multiply
    11,790.08x = 17,689.90 × 7,578.04
  4. Step 4: Simplify right side
    11,790.08x = 134,054,769.80
  5. Step 5: Solve for x
    x = 134,054,769.80/11,790.08
  6. Step 6: Final answer
    x = 11,370.13

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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.