Home / 12,976.32-19,464.21-4,211.22

Finding the Fourth Proportional to 12,976.32, 19,464.21 and 4,211.22

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Solution

The fourth proportional to 12,976.32, 19,464.21 and 4,211.22 is: 6,316.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,976.32 : 19,464.21 = 4,211.22 : x
  2. Step 2: Convert to fraction form
    12,976.32/19,464.21 = 4,211.22/x
  3. Step 3: Cross multiply
    12,976.32x = 19,464.21 × 4,211.22
  4. Step 4: Simplify right side
    12,976.32x = 81,968,070.44
  5. Step 5: Solve for x
    x = 81,968,070.44/12,976.32
  6. Step 6: Final answer
    x = 6,316.74

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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.