Home / 12,979.54-19,467.48-4,214.56

Finding the Fourth Proportional to 12,979.54, 19,467.48 and 4,214.56

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Solution

The fourth proportional to 12,979.54, 19,467.48 and 4,214.56 is: 6,321.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,979.54 : 19,467.48 = 4,214.56 : x
  2. Step 2: Convert to fraction form
    12,979.54/19,467.48 = 4,214.56/x
  3. Step 3: Cross multiply
    12,979.54x = 19,467.48 × 4,214.56
  4. Step 4: Simplify right side
    12,979.54x = 82,046,862.51
  5. Step 5: Solve for x
    x = 82,046,862.51/12,979.54
  6. Step 6: Final answer
    x = 6,321.25

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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.