Home / 12,040.78-18,047.96-6,197.70

Finding the Fourth Proportional to 12,040.78, 18,047.96 and 6,197.70

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Solution

The fourth proportional to 12,040.78, 18,047.96 and 6,197.70 is: 9,289.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,040.78 : 18,047.96 = 6,197.70 : x
  2. Step 2: Convert to fraction form
    12,040.78/18,047.96 = 6,197.70/x
  3. Step 3: Cross multiply
    12,040.78x = 18,047.96 × 6,197.70
  4. Step 4: Simplify right side
    12,040.78x = 111,855,841.69
  5. Step 5: Solve for x
    x = 111,855,841.69/12,040.78
  6. Step 6: Final answer
    x = 9,289.75

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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.