Home / 12,946.25-19,415.25-4,179.12

Finding the Fourth Proportional to 12,946.25, 19,415.25 and 4,179.12

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Solution

The fourth proportional to 12,946.25, 19,415.25 and 4,179.12 is: 6,267.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,946.25 : 19,415.25 = 4,179.12 : x
  2. Step 2: Convert to fraction form
    12,946.25/19,415.25 = 4,179.12/x
  3. Step 3: Cross multiply
    12,946.25x = 19,415.25 × 4,179.12
  4. Step 4: Simplify right side
    12,946.25x = 81,138,659.58
  5. Step 5: Solve for x
    x = 81,138,659.58/12,946.25
  6. Step 6: Final answer
    x = 6,267.35

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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.