Home / 12,369.03-18,556.56-3,603.89

Finding the Fourth Proportional to 12,369.03, 18,556.56 and 3,603.89

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Solution

The fourth proportional to 12,369.03, 18,556.56 and 3,603.89 is: 5,406.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,369.03 : 18,556.56 = 3,603.89 : x
  2. Step 2: Convert to fraction form
    12,369.03/18,556.56 = 3,603.89/x
  3. Step 3: Cross multiply
    12,369.03x = 18,556.56 × 3,603.89
  4. Step 4: Simplify right side
    12,369.03x = 66,875,708.24
  5. Step 5: Solve for x
    x = 66,875,708.24/12,369.03
  6. Step 6: Final answer
    x = 5,406.71

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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.