Home / 12,772.49-19,161.16-4,005.05

Finding the Fourth Proportional to 12,772.49, 19,161.16 and 4,005.05

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Solution

The fourth proportional to 12,772.49, 19,161.16 and 4,005.05 is: 6,008.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,772.49 : 19,161.16 = 4,005.05 : x
  2. Step 2: Convert to fraction form
    12,772.49/19,161.16 = 4,005.05/x
  3. Step 3: Cross multiply
    12,772.49x = 19,161.16 × 4,005.05
  4. Step 4: Simplify right side
    12,772.49x = 76,741,308.05
  5. Step 5: Solve for x
    x = 76,741,308.05/12,772.49
  6. Step 6: Final answer
    x = 6,008.33

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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.