Home / 13,774.28-20,661.37-3,913.56

Finding the Fourth Proportional to 13,774.28, 20,661.37 and 3,913.56

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Solution

The fourth proportional to 13,774.28, 20,661.37 and 3,913.56 is: 5,870.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,774.28 : 20,661.37 = 3,913.56 : x
  2. Step 2: Convert to fraction form
    13,774.28/20,661.37 = 3,913.56/x
  3. Step 3: Cross multiply
    13,774.28x = 20,661.37 × 3,913.56
  4. Step 4: Simplify right side
    13,774.28x = 80,859,511.18
  5. Step 5: Solve for x
    x = 80,859,511.18/13,774.28
  6. Step 6: Final answer
    x = 5,870.33

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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.