Home / 18,270.29-27,408.31-7,740.34

Finding the Fourth Proportional to 18,270.29, 27,408.31 and 7,740.34

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Solution

The fourth proportional to 18,270.29, 27,408.31 and 7,740.34 is: 11,611.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,270.29 : 27,408.31 = 7,740.34 : x
  2. Step 2: Convert to fraction form
    18,270.29/27,408.31 = 7,740.34/x
  3. Step 3: Cross multiply
    18,270.29x = 27,408.31 × 7,740.34
  4. Step 4: Simplify right side
    18,270.29x = 212,149,638.23
  5. Step 5: Solve for x
    x = 212,149,638.23/18,270.29
  6. Step 6: Final answer
    x = 11,611.73

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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.