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Finding the Fourth Proportional to 18,441, 27,662.76 and 5,292.36

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Solution

The fourth proportional to 18,441, 27,662.76 and 5,292.36 is: 7,938.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,441 : 27,662.76 = 5,292.36 : x
  2. Step 2: Convert to fraction form
    18,441/27,662.76 = 5,292.36/x
  3. Step 3: Cross multiply
    18,441x = 27,662.76 × 5,292.36
  4. Step 4: Simplify right side
    18,441x = 146,401,284.51
  5. Step 5: Solve for x
    x = 146,401,284.51/18,441
  6. Step 6: Final answer
    x = 7,938.90

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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.