Home / 12,786.86-19,181.21-4,465.94

Finding the Fourth Proportional to 12,786.86, 19,181.21 and 4,465.94

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Solution

The fourth proportional to 12,786.86, 19,181.21 and 4,465.94 is: 6,699.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,786.86 : 19,181.21 = 4,465.94 : x
  2. Step 2: Convert to fraction form
    12,786.86/19,181.21 = 4,465.94/x
  3. Step 3: Cross multiply
    12,786.86x = 19,181.21 × 4,465.94
  4. Step 4: Simplify right side
    12,786.86x = 85,662,014.75
  5. Step 5: Solve for x
    x = 85,662,014.75/12,786.86
  6. Step 6: Final answer
    x = 6,699.22

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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.