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Finding the Fourth Proportional to 18,446.79, 27,621.01 and 9,663.29

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Solution

The fourth proportional to 18,446.79, 27,621.01 and 9,663.29 is: 14,469.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,446.79 : 27,621.01 = 9,663.29 : x
  2. Step 2: Convert to fraction form
    18,446.79/27,621.01 = 9,663.29/x
  3. Step 3: Cross multiply
    18,446.79x = 27,621.01 × 9,663.29
  4. Step 4: Simplify right side
    18,446.79x = 266,909,829.72
  5. Step 5: Solve for x
    x = 266,909,829.72/18,446.79
  6. Step 6: Final answer
    x = 14,469.17

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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.