Home / 15,742.26-21,724.48-8,668.94

Finding the Fourth Proportional to 15,742.26, 21,724.48 and 8,668.94

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Solution

The fourth proportional to 15,742.26, 21,724.48 and 8,668.94 is: 11,963.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,742.26 : 21,724.48 = 8,668.94 : x
  2. Step 2: Convert to fraction form
    15,742.26/21,724.48 = 8,668.94/x
  3. Step 3: Cross multiply
    15,742.26x = 21,724.48 × 8,668.94
  4. Step 4: Simplify right side
    15,742.26x = 188,328,213.65
  5. Step 5: Solve for x
    x = 188,328,213.65/15,742.26
  6. Step 6: Final answer
    x = 11,963.23

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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.