Home / 11,289.09-15,579.11-6,508.94

Finding the Fourth Proportional to 11,289.09, 15,579.11 and 6,508.94

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Solution

The fourth proportional to 11,289.09, 15,579.11 and 6,508.94 is: 8,982.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,289.09 : 15,579.11 = 6,508.94 : x
  2. Step 2: Convert to fraction form
    11,289.09/15,579.11 = 6,508.94/x
  3. Step 3: Cross multiply
    11,289.09x = 15,579.11 × 6,508.94
  4. Step 4: Simplify right side
    11,289.09x = 101,403,498.65
  5. Step 5: Solve for x
    x = 101,403,498.65/11,289.09
  6. Step 6: Final answer
    x = 8,982.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.