Home / 12,767.20-19,150.78-4,002.12

Finding the Fourth Proportional to 12,767.20, 19,150.78 and 4,002.12

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Solution

The fourth proportional to 12,767.20, 19,150.78 and 4,002.12 is: 6,003.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,767.20 : 19,150.78 = 4,002.12 : x
  2. Step 2: Convert to fraction form
    12,767.20/19,150.78 = 4,002.12/x
  3. Step 3: Cross multiply
    12,767.20x = 19,150.78 × 4,002.12
  4. Step 4: Simplify right side
    12,767.20x = 76,643,719.65
  5. Step 5: Solve for x
    x = 76,643,719.65/12,767.20
  6. Step 6: Final answer
    x = 6,003.17

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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.