Home / 13,389.44-20,072.81-8,184.38

Finding the Fourth Proportional to 13,389.44, 20,072.81 and 8,184.38

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Solution

The fourth proportional to 13,389.44, 20,072.81 and 8,184.38 is: 12,269.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389.44 : 20,072.81 = 8,184.38 : x
  2. Step 2: Convert to fraction form
    13,389.44/20,072.81 = 8,184.38/x
  3. Step 3: Cross multiply
    13,389.44x = 20,072.81 × 8,184.38
  4. Step 4: Simplify right side
    13,389.44x = 164,283,424.80
  5. Step 5: Solve for x
    x = 164,283,424.80/13,389.44
  6. Step 6: Final answer
    x = 12,269.63

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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.