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Finding the Fourth Proportional to 18,152.08, 27,241.08 and 7,771.28

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Solution

The fourth proportional to 18,152.08, 27,241.08 and 7,771.28 is: 11,662.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,152.08 : 27,241.08 = 7,771.28 : x
  2. Step 2: Convert to fraction form
    18,152.08/27,241.08 = 7,771.28/x
  3. Step 3: Cross multiply
    18,152.08x = 27,241.08 × 7,771.28
  4. Step 4: Simplify right side
    18,152.08x = 211,698,060.18
  5. Step 5: Solve for x
    x = 211,698,060.18/18,152.08
  6. Step 6: Final answer
    x = 11,662.47

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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.