Home / 10,921.43-16,390.35-4,344.03

Finding the Fourth Proportional to 10,921.43, 16,390.35 and 4,344.03

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Solution

The fourth proportional to 10,921.43, 16,390.35 and 4,344.03 is: 6,519.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.43 : 16,390.35 = 4,344.03 : x
  2. Step 2: Convert to fraction form
    10,921.43/16,390.35 = 4,344.03/x
  3. Step 3: Cross multiply
    10,921.43x = 16,390.35 × 4,344.03
  4. Step 4: Simplify right side
    10,921.43x = 71,200,172.11
  5. Step 5: Solve for x
    x = 71,200,172.11/10,921.43
  6. Step 6: Final answer
    x = 6,519.31

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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.