Home / 12,236.48-18,309.36-7,308.80

Finding the Fourth Proportional to 12,236.48, 18,309.36 and 7,308.80

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Solution

The fourth proportional to 12,236.48, 18,309.36 and 7,308.80 is: 10,936.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,236.48 : 18,309.36 = 7,308.80 : x
  2. Step 2: Convert to fraction form
    12,236.48/18,309.36 = 7,308.80/x
  3. Step 3: Cross multiply
    12,236.48x = 18,309.36 × 7,308.80
  4. Step 4: Simplify right side
    12,236.48x = 133,819,450.37
  5. Step 5: Solve for x
    x = 133,819,450.37/12,236.48
  6. Step 6: Final answer
    x = 10,936.11

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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.