Home / 12,664.08-18,979.56-6,808.08

Finding the Fourth Proportional to 12,664.08, 18,979.56 and 6,808.08

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Solution

The fourth proportional to 12,664.08, 18,979.56 and 6,808.08 is: 10,203.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.08 : 18,979.56 = 6,808.08 : x
  2. Step 2: Convert to fraction form
    12,664.08/18,979.56 = 6,808.08/x
  3. Step 3: Cross multiply
    12,664.08x = 18,979.56 × 6,808.08
  4. Step 4: Simplify right side
    12,664.08x = 129,214,362.84
  5. Step 5: Solve for x
    x = 129,214,362.84/12,664.08
  6. Step 6: Final answer
    x = 10,203.22

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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.