Home / 18,154.85-27,215.87-12,610.80

Finding the Fourth Proportional to 18,154.85, 27,215.87 and 12,610.80

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Solution

The fourth proportional to 18,154.85, 27,215.87 and 12,610.80 is: 18,904.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,154.85 : 27,215.87 = 12,610.80 : x
  2. Step 2: Convert to fraction form
    18,154.85/27,215.87 = 12,610.80/x
  3. Step 3: Cross multiply
    18,154.85x = 27,215.87 × 12,610.80
  4. Step 4: Simplify right side
    18,154.85x = 343,213,830.34
  5. Step 5: Solve for x
    x = 343,213,830.34/18,154.85
  6. Step 6: Final answer
    x = 18,904.81

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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.