Home / 12,356.82-18,539.01-3,591.81

Finding the Fourth Proportional to 12,356.82, 18,539.01 and 3,591.81

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Solution

The fourth proportional to 12,356.82, 18,539.01 and 3,591.81 is: 5,388.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.82 : 18,539.01 = 3,591.81 : x
  2. Step 2: Convert to fraction form
    12,356.82/18,539.01 = 3,591.81/x
  3. Step 3: Cross multiply
    12,356.82x = 18,539.01 × 3,591.81
  4. Step 4: Simplify right side
    12,356.82x = 66,588,601.51
  5. Step 5: Solve for x
    x = 66,588,601.51/12,356.82
  6. Step 6: Final answer
    x = 5,388.81

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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.