Home / 13,661.58-20,491.44-3,800.94

Finding the Fourth Proportional to 13,661.58, 20,491.44 and 3,800.94

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Solution

The fourth proportional to 13,661.58, 20,491.44 and 3,800.94 is: 5,701.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,661.58 : 20,491.44 = 3,800.94 : x
  2. Step 2: Convert to fraction form
    13,661.58/20,491.44 = 3,800.94/x
  3. Step 3: Cross multiply
    13,661.58x = 20,491.44 × 3,800.94
  4. Step 4: Simplify right side
    13,661.58x = 77,886,733.95
  5. Step 5: Solve for x
    x = 77,886,733.95/13,661.58
  6. Step 6: Final answer
    x = 5,701.15

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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.