Home / 12,208.15-18,313.67-3,885.25

Finding the Fourth Proportional to 12,208.15, 18,313.67 and 3,885.25

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Solution

The fourth proportional to 12,208.15, 18,313.67 and 3,885.25 is: 5,828.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.15 : 18,313.67 = 3,885.25 : x
  2. Step 2: Convert to fraction form
    12,208.15/18,313.67 = 3,885.25/x
  3. Step 3: Cross multiply
    12,208.15x = 18,313.67 × 3,885.25
  4. Step 4: Simplify right side
    12,208.15x = 71,153,186.37
  5. Step 5: Solve for x
    x = 71,153,186.37/12,208.15
  6. Step 6: Final answer
    x = 5,828.33

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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.