Home / 12,718.92-19,078.09-3,359.60

Finding the Fourth Proportional to 12,718.92, 19,078.09 and 3,359.60

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Solution

The fourth proportional to 12,718.92, 19,078.09 and 3,359.60 is: 5,039.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,718.92 : 19,078.09 = 3,359.60 : x
  2. Step 2: Convert to fraction form
    12,718.92/19,078.09 = 3,359.60/x
  3. Step 3: Cross multiply
    12,718.92x = 19,078.09 × 3,359.60
  4. Step 4: Simplify right side
    12,718.92x = 64,094,638.98
  5. Step 5: Solve for x
    x = 64,094,638.98/12,718.92
  6. Step 6: Final answer
    x = 5,039.31

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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.