Home / 13,764.81-20,640.83-6,745.17

Finding the Fourth Proportional to 13,764.81, 20,640.83 and 6,745.17

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Solution

The fourth proportional to 13,764.81, 20,640.83 and 6,745.17 is: 10,114.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,764.81 : 20,640.83 = 6,745.17 : x
  2. Step 2: Convert to fraction form
    13,764.81/20,640.83 = 6,745.17/x
  3. Step 3: Cross multiply
    13,764.81x = 20,640.83 × 6,745.17
  4. Step 4: Simplify right side
    13,764.81x = 139,225,873.57
  5. Step 5: Solve for x
    x = 139,225,873.57/13,764.81
  6. Step 6: Final answer
    x = 10,114.62

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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.