Home / 12,161.84-18,243.34-4,370.80

Finding the Fourth Proportional to 12,161.84, 18,243.34 and 4,370.80

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Solution

The fourth proportional to 12,161.84, 18,243.34 and 4,370.80 is: 6,556.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.84 : 18,243.34 = 4,370.80 : x
  2. Step 2: Convert to fraction form
    12,161.84/18,243.34 = 4,370.80/x
  3. Step 3: Cross multiply
    12,161.84x = 18,243.34 × 4,370.80
  4. Step 4: Simplify right side
    12,161.84x = 79,737,990.47
  5. Step 5: Solve for x
    x = 79,737,990.47/12,161.84
  6. Step 6: Final answer
    x = 6,556.41

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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.