Home / 13,864.54-20,745.69-8,321.26

Finding the Fourth Proportional to 13,864.54, 20,745.69 and 8,321.26

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Solution

The fourth proportional to 13,864.54, 20,745.69 and 8,321.26 is: 12,451.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,864.54 : 20,745.69 = 8,321.26 : x
  2. Step 2: Convert to fraction form
    13,864.54/20,745.69 = 8,321.26/x
  3. Step 3: Cross multiply
    13,864.54x = 20,745.69 × 8,321.26
  4. Step 4: Simplify right side
    13,864.54x = 172,630,280.37
  5. Step 5: Solve for x
    x = 172,630,280.37/13,864.54
  6. Step 6: Final answer
    x = 12,451.21

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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.