Home / 12,213.93-18,323.53-3,780.41

Finding the Fourth Proportional to 12,213.93, 18,323.53 and 3,780.41

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Solution

The fourth proportional to 12,213.93, 18,323.53 and 3,780.41 is: 5,671.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,213.93 : 18,323.53 = 3,780.41 : x
  2. Step 2: Convert to fraction form
    12,213.93/18,323.53 = 3,780.41/x
  3. Step 3: Cross multiply
    12,213.93x = 18,323.53 × 3,780.41
  4. Step 4: Simplify right side
    12,213.93x = 69,270,492.41
  5. Step 5: Solve for x
    x = 69,270,492.41/12,213.93
  6. Step 6: Final answer
    x = 5,671.43

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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.