Home / 13,635.70-20,453.99-3,774.15

Finding the Fourth Proportional to 13,635.70, 20,453.99 and 3,774.15

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Solution

The fourth proportional to 13,635.70, 20,453.99 and 3,774.15 is: 5,661.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635.70 : 20,453.99 = 3,774.15 : x
  2. Step 2: Convert to fraction form
    13,635.70/20,453.99 = 3,774.15/x
  3. Step 3: Cross multiply
    13,635.70x = 20,453.99 × 3,774.15
  4. Step 4: Simplify right side
    13,635.70x = 77,196,426.36
  5. Step 5: Solve for x
    x = 77,196,426.36/13,635.70
  6. Step 6: Final answer
    x = 5,661.35

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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.