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Finding the Fourth Proportional to 18,173.51, 27,211.65 and 10,670.89

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Solution

The fourth proportional to 18,173.51, 27,211.65 and 10,670.89 is: 15,977.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,173.51 : 27,211.65 = 10,670.89 : x
  2. Step 2: Convert to fraction form
    18,173.51/27,211.65 = 10,670.89/x
  3. Step 3: Cross multiply
    18,173.51x = 27,211.65 × 10,670.89
  4. Step 4: Simplify right side
    18,173.51x = 290,372,466.85
  5. Step 5: Solve for x
    x = 290,372,466.85/18,173.51
  6. Step 6: Final answer
    x = 15,977.78

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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.