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Finding the Fourth Proportional to 18,168.34, 25,072.08 and 10,211.91

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Solution

The fourth proportional to 18,168.34, 25,072.08 and 10,211.91 is: 14,092.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,168.34 : 25,072.08 = 10,211.91 : x
  2. Step 2: Convert to fraction form
    18,168.34/25,072.08 = 10,211.91/x
  3. Step 3: Cross multiply
    18,168.34x = 25,072.08 × 10,211.91
  4. Step 4: Simplify right side
    18,168.34x = 256,033,824.47
  5. Step 5: Solve for x
    x = 256,033,824.47/18,168.34
  6. Step 6: Final answer
    x = 14,092.31

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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.