Home / 10,922.82-15,072.99-6,680.98

Finding the Fourth Proportional to 10,922.82, 15,072.99 and 6,680.98

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Solution

The fourth proportional to 10,922.82, 15,072.99 and 6,680.98 is: 9,219.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,922.82 : 15,072.99 = 6,680.98 : x
  2. Step 2: Convert to fraction form
    10,922.82/15,072.99 = 6,680.98/x
  3. Step 3: Cross multiply
    10,922.82x = 15,072.99 × 6,680.98
  4. Step 4: Simplify right side
    10,922.82x = 100,702,344.73
  5. Step 5: Solve for x
    x = 100,702,344.73/10,922.82
  6. Step 6: Final answer
    x = 9,219.45

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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.