Home / 12,209.93-18,302.44-4,811.39

Finding the Fourth Proportional to 12,209.93, 18,302.44 and 4,811.39

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Solution

The fourth proportional to 12,209.93, 18,302.44 and 4,811.39 is: 7,212.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209.93 : 18,302.44 = 4,811.39 : x
  2. Step 2: Convert to fraction form
    12,209.93/18,302.44 = 4,811.39/x
  3. Step 3: Cross multiply
    12,209.93x = 18,302.44 × 4,811.39
  4. Step 4: Simplify right side
    12,209.93x = 88,060,176.79
  5. Step 5: Solve for x
    x = 88,060,176.79/12,209.93
  6. Step 6: Final answer
    x = 7,212.18

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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.