Home / 11,129.54-15,354.33-6,651.65

Finding the Fourth Proportional to 11,129.54, 15,354.33 and 6,651.65

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Solution

The fourth proportional to 11,129.54, 15,354.33 and 6,651.65 is: 9,176.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,129.54 : 15,354.33 = 6,651.65 : x
  2. Step 2: Convert to fraction form
    11,129.54/15,354.33 = 6,651.65/x
  3. Step 3: Cross multiply
    11,129.54x = 15,354.33 × 6,651.65
  4. Step 4: Simplify right side
    11,129.54x = 102,131,552.37
  5. Step 5: Solve for x
    x = 102,131,552.37/11,129.54
  6. Step 6: Final answer
    x = 9,176.62

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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.