Home / 12,775.99-19,165.78-4,454.79

Finding the Fourth Proportional to 12,775.99, 19,165.78 and 4,454.79

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Solution

The fourth proportional to 12,775.99, 19,165.78 and 4,454.79 is: 6,682.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,775.99 : 19,165.78 = 4,454.79 : x
  2. Step 2: Convert to fraction form
    12,775.99/19,165.78 = 4,454.79/x
  3. Step 3: Cross multiply
    12,775.99x = 19,165.78 × 4,454.79
  4. Step 4: Simplify right side
    12,775.99x = 85,379,513.95
  5. Step 5: Solve for x
    x = 85,379,513.95/12,775.99
  6. Step 6: Final answer
    x = 6,682.81

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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.