Home / 11,325.41-16,981.47-3,425.55

Finding the Fourth Proportional to 11,325.41, 16,981.47 and 3,425.55

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Solution

The fourth proportional to 11,325.41, 16,981.47 and 3,425.55 is: 5,136.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,325.41 : 16,981.47 = 3,425.55 : x
  2. Step 2: Convert to fraction form
    11,325.41/16,981.47 = 3,425.55/x
  3. Step 3: Cross multiply
    11,325.41x = 16,981.47 × 3,425.55
  4. Step 4: Simplify right side
    11,325.41x = 58,170,874.56
  5. Step 5: Solve for x
    x = 58,170,874.56/11,325.41
  6. Step 6: Final answer
    x = 5,136.31

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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.