Home / 11,219.78-16,826.60-4,644.38

Finding the Fourth Proportional to 11,219.78, 16,826.60 and 4,644.38

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Solution

The fourth proportional to 11,219.78, 16,826.60 and 4,644.38 is: 6,965.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,219.78 : 16,826.60 = 4,644.38 : x
  2. Step 2: Convert to fraction form
    11,219.78/16,826.60 = 4,644.38/x
  3. Step 3: Cross multiply
    11,219.78x = 16,826.60 × 4,644.38
  4. Step 4: Simplify right side
    11,219.78x = 78,149,124.51
  5. Step 5: Solve for x
    x = 78,149,124.51/11,219.78
  6. Step 6: Final answer
    x = 6,965.30

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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.