Home / 7,960.04-11,939.72-2,116.65

Finding the Fourth Proportional to 7,960.04, 11,939.72 and 2,116.65

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Solution

The fourth proportional to 7,960.04, 11,939.72 and 2,116.65 is: 3,174.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,960.04 : 11,939.72 = 2,116.65 : x
  2. Step 2: Convert to fraction form
    7,960.04/11,939.72 = 2,116.65/x
  3. Step 3: Cross multiply
    7,960.04x = 11,939.72 × 2,116.65
  4. Step 4: Simplify right side
    7,960.04x = 25,272,208.34
  5. Step 5: Solve for x
    x = 25,272,208.34/7,960.04
  6. Step 6: Final answer
    x = 3,174.88

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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.