Home / 10,921.80-16,363.26-5,068.20

Finding the Fourth Proportional to 10,921.80, 16,363.26 and 5,068.20

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Solution

The fourth proportional to 10,921.80, 16,363.26 and 5,068.20 is: 7,593.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.80 : 16,363.26 = 5,068.20 : x
  2. Step 2: Convert to fraction form
    10,921.80/16,363.26 = 5,068.20/x
  3. Step 3: Cross multiply
    10,921.80x = 16,363.26 × 5,068.20
  4. Step 4: Simplify right side
    10,921.80x = 82,932,274.33
  5. Step 5: Solve for x
    x = 82,932,274.33/10,921.80
  6. Step 6: Final answer
    x = 7,593.28

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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.