Home / 12,694.19-17,511.93-8,447.22

Finding the Fourth Proportional to 12,694.19, 17,511.93 and 8,447.22

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Solution

The fourth proportional to 12,694.19, 17,511.93 and 8,447.22 is: 11,653.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,694.19 : 17,511.93 = 8,447.22 : x
  2. Step 2: Convert to fraction form
    12,694.19/17,511.93 = 8,447.22/x
  3. Step 3: Cross multiply
    12,694.19x = 17,511.93 × 8,447.22
  4. Step 4: Simplify right side
    12,694.19x = 147,927,125.33
  5. Step 5: Solve for x
    x = 147,927,125.33/12,694.19
  6. Step 6: Final answer
    x = 11,653.14

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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.