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Finding the Fourth Proportional to 18,242.97, 27,315.10 and 9,459.42

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Solution

The fourth proportional to 18,242.97, 27,315.10 and 9,459.42 is: 14,163.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,242.97 : 27,315.10 = 9,459.42 : x
  2. Step 2: Convert to fraction form
    18,242.97/27,315.10 = 9,459.42/x
  3. Step 3: Cross multiply
    18,242.97x = 27,315.10 × 9,459.42
  4. Step 4: Simplify right side
    18,242.97x = 258,385,003.24
  5. Step 5: Solve for x
    x = 258,385,003.24/18,242.97
  6. Step 6: Final answer
    x = 14,163.54

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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.