Home / 12,771.62-19,154.39-4,005.39

Finding the Fourth Proportional to 12,771.62, 19,154.39 and 4,005.39

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Solution

The fourth proportional to 12,771.62, 19,154.39 and 4,005.39 is: 6,007.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771.62 : 19,154.39 = 4,005.39 : x
  2. Step 2: Convert to fraction form
    12,771.62/19,154.39 = 4,005.39/x
  3. Step 3: Cross multiply
    12,771.62x = 19,154.39 × 4,005.39
  4. Step 4: Simplify right side
    12,771.62x = 76,720,782.14
  5. Step 5: Solve for x
    x = 76,720,782.14/12,771.62
  6. Step 6: Final answer
    x = 6,007.13

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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.