Home / 13,603.68-20,403.16-3,740.61

Finding the Fourth Proportional to 13,603.68, 20,403.16 and 3,740.61

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Solution

The fourth proportional to 13,603.68, 20,403.16 and 3,740.61 is: 5,610.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,603.68 : 20,403.16 = 3,740.61 : x
  2. Step 2: Convert to fraction form
    13,603.68/20,403.16 = 3,740.61/x
  3. Step 3: Cross multiply
    13,603.68x = 20,403.16 × 3,740.61
  4. Step 4: Simplify right side
    13,603.68x = 76,320,264.33
  5. Step 5: Solve for x
    x = 76,320,264.33/13,603.68
  6. Step 6: Final answer
    x = 5,610.27

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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.