Home / 10,668.91-15,995.46-5,116.97

Finding the Fourth Proportional to 10,668.91, 15,995.46 and 5,116.97

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Solution

The fourth proportional to 10,668.91, 15,995.46 and 5,116.97 is: 7,671.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,668.91 : 15,995.46 = 5,116.97 : x
  2. Step 2: Convert to fraction form
    10,668.91/15,995.46 = 5,116.97/x
  3. Step 3: Cross multiply
    10,668.91x = 15,995.46 × 5,116.97
  4. Step 4: Simplify right side
    10,668.91x = 81,848,208.98
  5. Step 5: Solve for x
    x = 81,848,208.98/10,668.91
  6. Step 6: Final answer
    x = 7,671.66

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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.