Home / 10,855.56-16,283.34-3,930.12

Finding the Fourth Proportional to 10,855.56, 16,283.34 and 3,930.12

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Solution

The fourth proportional to 10,855.56, 16,283.34 and 3,930.12 is: 5,895.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,855.56 : 16,283.34 = 3,930.12 : x
  2. Step 2: Convert to fraction form
    10,855.56/16,283.34 = 3,930.12/x
  3. Step 3: Cross multiply
    10,855.56x = 16,283.34 × 3,930.12
  4. Step 4: Simplify right side
    10,855.56x = 63,995,480.20
  5. Step 5: Solve for x
    x = 63,995,480.20/10,855.56
  6. Step 6: Final answer
    x = 5,895.18

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1.5x scale

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.