Home / 13,745.90-20,629.79-4,983.32

Finding the Fourth Proportional to 13,745.90, 20,629.79 and 4,983.32

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Solution

The fourth proportional to 13,745.90, 20,629.79 and 4,983.32 is: 7,478.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,745.90 : 20,629.79 = 4,983.32 : x
  2. Step 2: Convert to fraction form
    13,745.90/20,629.79 = 4,983.32/x
  3. Step 3: Cross multiply
    13,745.90x = 20,629.79 × 4,983.32
  4. Step 4: Simplify right side
    13,745.90x = 102,804,845.10
  5. Step 5: Solve for x
    x = 102,804,845.10/13,745.90
  6. Step 6: Final answer
    x = 7,478.95

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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.