Home / 13,181.49-19,778.72-6,161.99

Finding the Fourth Proportional to 13,181.49, 19,778.72 and 6,161.99

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Solution

The fourth proportional to 13,181.49, 19,778.72 and 6,161.99 is: 9,246.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181.49 : 19,778.72 = 6,161.99 : x
  2. Step 2: Convert to fraction form
    13,181.49/19,778.72 = 6,161.99/x
  3. Step 3: Cross multiply
    13,181.49x = 19,778.72 × 6,161.99
  4. Step 4: Simplify right side
    13,181.49x = 121,876,145.15
  5. Step 5: Solve for x
    x = 121,876,145.15/13,181.49
  6. Step 6: Final answer
    x = 9,246.01

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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.