Home / 12,369.40-18,556.98-3,604.12

Finding the Fourth Proportional to 12,369.40, 18,556.98 and 3,604.12

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Solution

The fourth proportional to 12,369.40, 18,556.98 and 3,604.12 is: 5,407.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,369.40 : 18,556.98 = 3,604.12 : x
  2. Step 2: Convert to fraction form
    12,369.40/18,556.98 = 3,604.12/x
  3. Step 3: Cross multiply
    12,369.40x = 18,556.98 × 3,604.12
  4. Step 4: Simplify right side
    12,369.40x = 66,881,582.76
  5. Step 5: Solve for x
    x = 66,881,582.76/12,369.40
  6. Step 6: Final answer
    x = 5,407.02

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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.