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Finding the Fourth Proportional to 18,010.72, 27,016.08 and 7,622.56

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Solution

The fourth proportional to 18,010.72, 27,016.08 and 7,622.56 is: 11,433.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,010.72 : 27,016.08 = 7,622.56 : x
  2. Step 2: Convert to fraction form
    18,010.72/27,016.08 = 7,622.56/x
  3. Step 3: Cross multiply
    18,010.72x = 27,016.08 × 7,622.56
  4. Step 4: Simplify right side
    18,010.72x = 205,931,690.76
  5. Step 5: Solve for x
    x = 205,931,690.76/18,010.72
  6. Step 6: Final answer
    x = 11,433.84

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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.