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Finding the Fourth Proportional to 18,188.42, 25,100.21 and 10,230.64

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Solution

The fourth proportional to 18,188.42, 25,100.21 and 10,230.64 is: 14,118.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,188.42 : 25,100.21 = 10,230.64 : x
  2. Step 2: Convert to fraction form
    18,188.42/25,100.21 = 10,230.64/x
  3. Step 3: Cross multiply
    18,188.42x = 25,100.21 × 10,230.64
  4. Step 4: Simplify right side
    18,188.42x = 256,791,175.26
  5. Step 5: Solve for x
    x = 256,791,175.26/18,188.42
  6. Step 6: Final answer
    x = 14,118.39

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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.