Home / 13,705.82-20,560.02-3,845.06

Finding the Fourth Proportional to 13,705.82, 20,560.02 and 3,845.06

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Solution

The fourth proportional to 13,705.82, 20,560.02 and 3,845.06 is: 5,767.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,705.82 : 20,560.02 = 3,845.06 : x
  2. Step 2: Convert to fraction form
    13,705.82/20,560.02 = 3,845.06/x
  3. Step 3: Cross multiply
    13,705.82x = 20,560.02 × 3,845.06
  4. Step 4: Simplify right side
    13,705.82x = 79,054,470.38
  5. Step 5: Solve for x
    x = 79,054,470.38/13,705.82
  6. Step 6: Final answer
    x = 5,767.95

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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.