Home / 12,316.54-18,475.73-3,997.89

Finding the Fourth Proportional to 12,316.54, 18,475.73 and 3,997.89

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Solution

The fourth proportional to 12,316.54, 18,475.73 and 3,997.89 is: 5,997.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,316.54 : 18,475.73 = 3,997.89 : x
  2. Step 2: Convert to fraction form
    12,316.54/18,475.73 = 3,997.89/x
  3. Step 3: Cross multiply
    12,316.54x = 18,475.73 × 3,997.89
  4. Step 4: Simplify right side
    12,316.54x = 73,863,936.21
  5. Step 5: Solve for x
    x = 73,863,936.21/12,316.54
  6. Step 6: Final answer
    x = 5,997.13

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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.