Home / 13,778.75-20,671.37-4,544.75

Finding the Fourth Proportional to 13,778.75, 20,671.37 and 4,544.75

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Solution

The fourth proportional to 13,778.75, 20,671.37 and 4,544.75 is: 6,818.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,778.75 : 20,671.37 = 4,544.75 : x
  2. Step 2: Convert to fraction form
    13,778.75/20,671.37 = 4,544.75/x
  3. Step 3: Cross multiply
    13,778.75x = 20,671.37 × 4,544.75
  4. Step 4: Simplify right side
    13,778.75x = 93,946,208.81
  5. Step 5: Solve for x
    x = 93,946,208.81/13,778.75
  6. Step 6: Final answer
    x = 6,818.20

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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.