Home / 13,708.80-20,550.72-4,941.72

Finding the Fourth Proportional to 13,708.80, 20,550.72 and 4,941.72

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Solution

The fourth proportional to 13,708.80, 20,550.72 and 4,941.72 is: 7,408.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.80 : 20,550.72 = 4,941.72 : x
  2. Step 2: Convert to fraction form
    13,708.80/20,550.72 = 4,941.72/x
  3. Step 3: Cross multiply
    13,708.80x = 20,550.72 × 4,941.72
  4. Step 4: Simplify right side
    13,708.80x = 101,555,904.04
  5. Step 5: Solve for x
    x = 101,555,904.04/13,708.80
  6. Step 6: Final answer
    x = 7,408.08

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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.