Home / 10,913.21-16,369.81-3,122.02

Finding the Fourth Proportional to 10,913.21, 16,369.81 and 3,122.02

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Solution

The fourth proportional to 10,913.21, 16,369.81 and 3,122.02 is: 4,683.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.21 : 16,369.81 = 3,122.02 : x
  2. Step 2: Convert to fraction form
    10,913.21/16,369.81 = 3,122.02/x
  3. Step 3: Cross multiply
    10,913.21x = 16,369.81 × 3,122.02
  4. Step 4: Simplify right side
    10,913.21x = 51,106,874.22
  5. Step 5: Solve for x
    x = 51,106,874.22/10,913.21
  6. Step 6: Final answer
    x = 4,683.03

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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.