Home / 10,968.57-15,137.82-6,722.46

Finding the Fourth Proportional to 10,968.57, 15,137.82 and 6,722.46

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Solution

The fourth proportional to 10,968.57, 15,137.82 and 6,722.46 is: 9,277.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,968.57 : 15,137.82 = 6,722.46 : x
  2. Step 2: Convert to fraction form
    10,968.57/15,137.82 = 6,722.46/x
  3. Step 3: Cross multiply
    10,968.57x = 15,137.82 × 6,722.46
  4. Step 4: Simplify right side
    10,968.57x = 101,763,389.44
  5. Step 5: Solve for x
    x = 101,763,389.44/10,968.57
  6. Step 6: Final answer
    x = 9,277.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.