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Finding the Fourth Proportional to 12,317, 18,471.63 and 3,995.08

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Solution

The fourth proportional to 12,317, 18,471.63 and 3,995.08 is: 5,991.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,317 : 18,471.63 = 3,995.08 : x
  2. Step 2: Convert to fraction form
    12,317/18,471.63 = 3,995.08/x
  3. Step 3: Cross multiply
    12,317x = 18,471.63 × 3,995.08
  4. Step 4: Simplify right side
    12,317x = 73,795,639.58
  5. Step 5: Solve for x
    x = 73,795,639.58/12,317
  6. Step 6: Final answer
    x = 5,991.36

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Double scale
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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.