Home / 13,741.76-20,603.46-5,416.58

Finding the Fourth Proportional to 13,741.76, 20,603.46 and 5,416.58

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Solution

The fourth proportional to 13,741.76, 20,603.46 and 5,416.58 is: 8,121.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,741.76 : 20,603.46 = 5,416.58 : x
  2. Step 2: Convert to fraction form
    13,741.76/20,603.46 = 5,416.58/x
  3. Step 3: Cross multiply
    13,741.76x = 20,603.46 × 5,416.58
  4. Step 4: Simplify right side
    13,741.76x = 111,600,289.37
  5. Step 5: Solve for x
    x = 111,600,289.37/13,741.76
  6. Step 6: Final answer
    x = 8,121.25

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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.