Home / 15,364.97-21,199.41-8,650.20

Finding the Fourth Proportional to 15,364.97, 21,199.41 and 8,650.20

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Solution

The fourth proportional to 15,364.97, 21,199.41 and 8,650.20 is: 11,934.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,364.97 : 21,199.41 = 8,650.20 : x
  2. Step 2: Convert to fraction form
    15,364.97/21,199.41 = 8,650.20/x
  3. Step 3: Cross multiply
    15,364.97x = 21,199.41 × 8,650.20
  4. Step 4: Simplify right side
    15,364.97x = 183,379,136.38
  5. Step 5: Solve for x
    x = 183,379,136.38/15,364.97
  6. Step 6: Final answer
    x = 11,934.88

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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.