Home / 13,669.77-20,504.87-3,808.95

Finding the Fourth Proportional to 13,669.77, 20,504.87 and 3,808.95

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Solution

The fourth proportional to 13,669.77, 20,504.87 and 3,808.95 is: 5,713.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.77 : 20,504.87 = 3,808.95 : x
  2. Step 2: Convert to fraction form
    13,669.77/20,504.87 = 3,808.95/x
  3. Step 3: Cross multiply
    13,669.77x = 20,504.87 × 3,808.95
  4. Step 4: Simplify right side
    13,669.77x = 78,102,024.59
  5. Step 5: Solve for x
    x = 78,102,024.59/13,669.77
  6. Step 6: Final answer
    x = 5,713.48

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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.