Home / 13,636.91-20,455.36-3,776.18

Finding the Fourth Proportional to 13,636.91, 20,455.36 and 3,776.18

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Solution

The fourth proportional to 13,636.91, 20,455.36 and 3,776.18 is: 5,664.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.91 : 20,455.36 = 3,776.18 : x
  2. Step 2: Convert to fraction form
    13,636.91/20,455.36 = 3,776.18/x
  3. Step 3: Cross multiply
    13,636.91x = 20,455.36 × 3,776.18
  4. Step 4: Simplify right side
    13,636.91x = 77,243,163.02
  5. Step 5: Solve for x
    x = 77,243,163.02/13,636.91
  6. Step 6: Final answer
    x = 5,664.27

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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.