Home / 13,856.77-20,788.22-3,995.28

Finding the Fourth Proportional to 13,856.77, 20,788.22 and 3,995.28

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Solution

The fourth proportional to 13,856.77, 20,788.22 and 3,995.28 is: 5,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,856.77 : 20,788.22 = 3,995.28 : x
  2. Step 2: Convert to fraction form
    13,856.77/20,788.22 = 3,995.28/x
  3. Step 3: Cross multiply
    13,856.77x = 20,788.22 × 3,995.28
  4. Step 4: Simplify right side
    13,856.77x = 83,054,759.60
  5. Step 5: Solve for x
    x = 83,054,759.60/13,856.77
  6. Step 6: Final answer
    x = 5,993.80

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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.