Home / 10,922.43-16,391.85-4,345.03

Finding the Fourth Proportional to 10,922.43, 16,391.85 and 4,345.03

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Solution

The fourth proportional to 10,922.43, 16,391.85 and 4,345.03 is: 6,520.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,922.43 : 16,391.85 = 4,345.03 : x
  2. Step 2: Convert to fraction form
    10,922.43/16,391.85 = 4,345.03/x
  3. Step 3: Cross multiply
    10,922.43x = 16,391.85 × 4,345.03
  4. Step 4: Simplify right side
    10,922.43x = 71,223,080.01
  5. Step 5: Solve for x
    x = 71,223,080.01/10,922.43
  6. Step 6: Final answer
    x = 6,520.81

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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.