Home / 18,014.85-27,020.66-12,772.35

Finding the Fourth Proportional to 18,014.85, 27,020.66 and 12,772.35

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Solution

The fourth proportional to 18,014.85, 27,020.66 and 12,772.35 is: 19,157.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,014.85 : 27,020.66 = 12,772.35 : x
  2. Step 2: Convert to fraction form
    18,014.85/27,020.66 = 12,772.35/x
  3. Step 3: Cross multiply
    18,014.85x = 27,020.66 × 12,772.35
  4. Step 4: Simplify right side
    18,014.85x = 345,117,262.89
  5. Step 5: Solve for x
    x = 345,117,262.89/18,014.85
  6. Step 6: Final answer
    x = 19,157.38

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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.