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Finding the Fourth Proportional to 18,276.09, 27,392.05 and 8,902.06

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Solution

The fourth proportional to 18,276.09, 27,392.05 and 8,902.06 is: 13,342.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,276.09 : 27,392.05 = 8,902.06 : x
  2. Step 2: Convert to fraction form
    18,276.09/27,392.05 = 8,902.06/x
  3. Step 3: Cross multiply
    18,276.09x = 27,392.05 × 8,902.06
  4. Step 4: Simplify right side
    18,276.09x = 243,845,672.62
  5. Step 5: Solve for x
    x = 243,845,672.62/18,276.09
  6. Step 6: Final answer
    x = 13,342.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.