Home / 12,208.14-18,298.44-7,999.50

Finding the Fourth Proportional to 12,208.14, 18,298.44 and 7,999.50

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Solution

The fourth proportional to 12,208.14, 18,298.44 and 7,999.50 is: 11,990.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.14 : 18,298.44 = 7,999.50 : x
  2. Step 2: Convert to fraction form
    12,208.14/18,298.44 = 7,999.50/x
  3. Step 3: Cross multiply
    12,208.14x = 18,298.44 × 7,999.50
  4. Step 4: Simplify right side
    12,208.14x = 146,378,370.78
  5. Step 5: Solve for x
    x = 146,378,370.78/12,208.14
  6. Step 6: Final answer
    x = 11,990.23

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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.