Home / 12,878.20-19,301.70-5,467.10

Finding the Fourth Proportional to 12,878.20, 19,301.70 and 5,467.10

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Solution

The fourth proportional to 12,878.20, 19,301.70 and 5,467.10 is: 8,194.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878.20 : 19,301.70 = 5,467.10 : x
  2. Step 2: Convert to fraction form
    12,878.20/19,301.70 = 5,467.10/x
  3. Step 3: Cross multiply
    12,878.20x = 19,301.70 × 5,467.10
  4. Step 4: Simplify right side
    12,878.20x = 105,524,324.07
  5. Step 5: Solve for x
    x = 105,524,324.07/12,878.20
  6. Step 6: Final answer
    x = 8,194.03

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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.