Home / 13,765.14-18,975.06-8,450.73

Finding the Fourth Proportional to 13,765.14, 18,975.06 and 8,450.73

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Solution

The fourth proportional to 13,765.14, 18,975.06 and 8,450.73 is: 11,649.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.14 : 18,975.06 = 8,450.73 : x
  2. Step 2: Convert to fraction form
    13,765.14/18,975.06 = 8,450.73/x
  3. Step 3: Cross multiply
    13,765.14x = 18,975.06 × 8,450.73
  4. Step 4: Simplify right side
    13,765.14x = 160,353,108.79
  5. Step 5: Solve for x
    x = 160,353,108.79/13,765.14
  6. Step 6: Final answer
    x = 11,649.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.