Home / 18,281.20-27,399.75-8,406.94

Finding the Fourth Proportional to 18,281.20, 27,399.75 and 8,406.94

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Solution

The fourth proportional to 18,281.20, 27,399.75 and 8,406.94 is: 12,600.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,281.20 : 27,399.75 = 8,406.94 : x
  2. Step 2: Convert to fraction form
    18,281.20/27,399.75 = 8,406.94/x
  3. Step 3: Cross multiply
    18,281.20x = 27,399.75 × 8,406.94
  4. Step 4: Simplify right side
    18,281.20x = 230,348,054.27
  5. Step 5: Solve for x
    x = 230,348,054.27/18,281.20
  6. Step 6: Final answer
    x = 12,600.27

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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.