Home / 18,249.40-27,355.20-9,911.80

Finding the Fourth Proportional to 18,249.40, 27,355.20 and 9,911.80

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Solution

The fourth proportional to 18,249.40, 27,355.20 and 9,911.80 is: 14,857.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,249.40 : 27,355.20 = 9,911.80 : x
  2. Step 2: Convert to fraction form
    18,249.40/27,355.20 = 9,911.80/x
  3. Step 3: Cross multiply
    18,249.40x = 27,355.20 × 9,911.80
  4. Step 4: Simplify right side
    18,249.40x = 271,139,271.36
  5. Step 5: Solve for x
    x = 271,139,271.36/18,249.40
  6. Step 6: Final answer
    x = 14,857.43

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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.