Home / 14,479.75-21,722.87-5,119.66

Finding the Fourth Proportional to 14,479.75, 21,722.87 and 5,119.66

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Solution

The fourth proportional to 14,479.75, 21,722.87 and 5,119.66 is: 7,680.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,479.75 : 21,722.87 = 5,119.66 : x
  2. Step 2: Convert to fraction form
    14,479.75/21,722.87 = 5,119.66/x
  3. Step 3: Cross multiply
    14,479.75x = 21,722.87 × 5,119.66
  4. Step 4: Simplify right side
    14,479.75x = 111,213,708.62
  5. Step 5: Solve for x
    x = 111,213,708.62/14,479.75
  6. Step 6: Final answer
    x = 7,680.64

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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.