Home / 12,760.83-19,143.53-5,260.21

Finding the Fourth Proportional to 12,760.83, 19,143.53 and 5,260.21

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Solution

The fourth proportional to 12,760.83, 19,143.53 and 5,260.21 is: 7,891.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,760.83 : 19,143.53 = 5,260.21 : x
  2. Step 2: Convert to fraction form
    12,760.83/19,143.53 = 5,260.21/x
  3. Step 3: Cross multiply
    12,760.83x = 19,143.53 × 5,260.21
  4. Step 4: Simplify right side
    12,760.83x = 100,698,987.94
  5. Step 5: Solve for x
    x = 100,698,987.94/12,760.83
  6. Step 6: Final answer
    x = 7,891.26

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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.