Home / 18,153.85-27,214.36-12,609.80

Finding the Fourth Proportional to 18,153.85, 27,214.36 and 12,609.80

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Solution

The fourth proportional to 18,153.85, 27,214.36 and 12,609.80 is: 18,903.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,153.85 : 27,214.36 = 12,609.80 : x
  2. Step 2: Convert to fraction form
    18,153.85/27,214.36 = 12,609.80/x
  3. Step 3: Cross multiply
    18,153.85x = 27,214.36 × 12,609.80
  4. Step 4: Simplify right side
    18,153.85x = 343,167,636.73
  5. Step 5: Solve for x
    x = 343,167,636.73/18,153.85
  6. Step 6: Final answer
    x = 18,903.30

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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.