Home / 15,664.26-21,617.82-8,949.74

Finding the Fourth Proportional to 15,664.26, 21,617.82 and 8,949.74

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Solution

The fourth proportional to 15,664.26, 21,617.82 and 8,949.74 is: 12,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,664.26 : 21,617.82 = 8,949.74 : x
  2. Step 2: Convert to fraction form
    15,664.26/21,617.82 = 8,949.74/x
  3. Step 3: Cross multiply
    15,664.26x = 21,617.82 × 8,949.74
  4. Step 4: Simplify right side
    15,664.26x = 193,473,963.89
  5. Step 5: Solve for x
    x = 193,473,963.89/15,664.26
  6. Step 6: Final answer
    x = 12,351.30

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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.