Home / 9,913.55-13,680.25-5,936.85

Finding the Fourth Proportional to 9,913.55, 13,680.25 and 5,936.85

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Solution

The fourth proportional to 9,913.55, 13,680.25 and 5,936.85 is: 8,192.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,913.55 : 13,680.25 = 5,936.85 : x
  2. Step 2: Convert to fraction form
    9,913.55/13,680.25 = 5,936.85/x
  3. Step 3: Cross multiply
    9,913.55x = 13,680.25 × 5,936.85
  4. Step 4: Simplify right side
    9,913.55x = 81,217,577.37
  5. Step 5: Solve for x
    x = 81,217,577.37/9,913.55
  6. Step 6: Final answer
    x = 8,192.59

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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.