Home / 11,679.74-16,105.84-7,695.80

Finding the Fourth Proportional to 11,679.74, 16,105.84 and 7,695.80

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Solution

The fourth proportional to 11,679.74, 16,105.84 and 7,695.80 is: 10,612.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,679.74 : 16,105.84 = 7,695.80 : x
  2. Step 2: Convert to fraction form
    11,679.74/16,105.84 = 7,695.80/x
  3. Step 3: Cross multiply
    11,679.74x = 16,105.84 × 7,695.80
  4. Step 4: Simplify right side
    11,679.74x = 123,947,223.70
  5. Step 5: Solve for x
    x = 123,947,223.70/11,679.74
  6. Step 6: Final answer
    x = 10,612.16

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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.