Home / 13,705.84-20,558.58-3,317.68

Finding the Fourth Proportional to 13,705.84, 20,558.58 and 3,317.68

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Solution

The fourth proportional to 13,705.84, 20,558.58 and 3,317.68 is: 4,976.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,705.84 : 20,558.58 = 3,317.68 : x
  2. Step 2: Convert to fraction form
    13,705.84/20,558.58 = 3,317.68/x
  3. Step 3: Cross multiply
    13,705.84x = 20,558.58 × 3,317.68
  4. Step 4: Simplify right side
    13,705.84x = 68,206,789.69
  5. Step 5: Solve for x
    x = 68,206,789.69/13,705.84
  6. Step 6: Final answer
    x = 4,976.48

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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.