Home / 12,535.78-18,796.38-4,745.20

Finding the Fourth Proportional to 12,535.78, 18,796.38 and 4,745.20

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Solution

The fourth proportional to 12,535.78, 18,796.38 and 4,745.20 is: 7,115.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,535.78 : 18,796.38 = 4,745.20 : x
  2. Step 2: Convert to fraction form
    12,535.78/18,796.38 = 4,745.20/x
  3. Step 3: Cross multiply
    12,535.78x = 18,796.38 × 4,745.20
  4. Step 4: Simplify right side
    12,535.78x = 89,192,582.38
  5. Step 5: Solve for x
    x = 89,192,582.38/12,535.78
  6. Step 6: Final answer
    x = 7,115.04

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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.