Home / 13,629.94-20,429.52-6,947.67

Finding the Fourth Proportional to 13,629.94, 20,429.52 and 6,947.67

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Solution

The fourth proportional to 13,629.94, 20,429.52 and 6,947.67 is: 10,413.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.94 : 20,429.52 = 6,947.67 : x
  2. Step 2: Convert to fraction form
    13,629.94/20,429.52 = 6,947.67/x
  3. Step 3: Cross multiply
    13,629.94x = 20,429.52 × 6,947.67
  4. Step 4: Simplify right side
    13,629.94x = 141,937,563.22
  5. Step 5: Solve for x
    x = 141,937,563.22/13,629.94
  6. Step 6: Final answer
    x = 10,413.66

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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.