Home / 10,418.44-15,620.64-5,482.84

Finding the Fourth Proportional to 10,418.44, 15,620.64 and 5,482.84

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Solution

The fourth proportional to 10,418.44, 15,620.64 and 5,482.84 is: 8,220.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,418.44 : 15,620.64 = 5,482.84 : x
  2. Step 2: Convert to fraction form
    10,418.44/15,620.64 = 5,482.84/x
  3. Step 3: Cross multiply
    10,418.44x = 15,620.64 × 5,482.84
  4. Step 4: Simplify right side
    10,418.44x = 85,645,469.82
  5. Step 5: Solve for x
    x = 85,645,469.82/10,418.44
  6. Step 6: Final answer
    x = 8,220.57

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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.