Home / 12,015.06-16,578.06-8,622.78

Finding the Fourth Proportional to 12,015.06, 16,578.06 and 8,622.78

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Solution

The fourth proportional to 12,015.06, 16,578.06 and 8,622.78 is: 11,897.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.06 : 16,578.06 = 8,622.78 : x
  2. Step 2: Convert to fraction form
    12,015.06/16,578.06 = 8,622.78/x
  3. Step 3: Cross multiply
    12,015.06x = 16,578.06 × 8,622.78
  4. Step 4: Simplify right side
    12,015.06x = 142,948,964.21
  5. Step 5: Solve for x
    x = 142,948,964.21/12,015.06
  6. Step 6: Final answer
    x = 11,897.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.