Home / 15,668.33-21,630.71-12,101.76

Finding the Fourth Proportional to 15,668.33, 21,630.71 and 12,101.76

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Solution

The fourth proportional to 15,668.33, 21,630.71 and 12,101.76 is: 16,706.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,668.33 : 21,630.71 = 12,101.76 : x
  2. Step 2: Convert to fraction form
    15,668.33/21,630.71 = 12,101.76/x
  3. Step 3: Cross multiply
    15,668.33x = 21,630.71 × 12,101.76
  4. Step 4: Simplify right side
    15,668.33x = 261,769,691.30
  5. Step 5: Solve for x
    x = 261,769,691.30/15,668.33
  6. Step 6: Final answer
    x = 16,706.94

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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.