Home / 12,695.06-19,021.04-8,979.12

Finding the Fourth Proportional to 12,695.06, 19,021.04 and 8,979.12

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Solution

The fourth proportional to 12,695.06, 19,021.04 and 8,979.12 is: 13,453.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,695.06 : 19,021.04 = 8,979.12 : x
  2. Step 2: Convert to fraction form
    12,695.06/19,021.04 = 8,979.12/x
  3. Step 3: Cross multiply
    12,695.06x = 19,021.04 × 8,979.12
  4. Step 4: Simplify right side
    12,695.06x = 170,792,200.68
  5. Step 5: Solve for x
    x = 170,792,200.68/12,695.06
  6. Step 6: Final answer
    x = 13,453.44

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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.