Home / 15,741.96-21,723.85-8,668.38

Finding the Fourth Proportional to 15,741.96, 21,723.85 and 8,668.38

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Solution

The fourth proportional to 15,741.96, 21,723.85 and 8,668.38 is: 11,962.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,741.96 : 21,723.85 = 8,668.38 : x
  2. Step 2: Convert to fraction form
    15,741.96/21,723.85 = 8,668.38/x
  3. Step 3: Cross multiply
    15,741.96x = 21,723.85 × 8,668.38
  4. Step 4: Simplify right side
    15,741.96x = 188,310,630.40
  5. Step 5: Solve for x
    x = 188,310,630.40/15,741.96
  6. Step 6: Final answer
    x = 11,962.34

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Double scale
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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.