Home / 12,169.49-18,247.70-6,243.94

Finding the Fourth Proportional to 12,169.49, 18,247.70 and 6,243.94

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Solution

The fourth proportional to 12,169.49, 18,247.70 and 6,243.94 is: 9,362.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,169.49 : 18,247.70 = 6,243.94 : x
  2. Step 2: Convert to fraction form
    12,169.49/18,247.70 = 6,243.94/x
  3. Step 3: Cross multiply
    12,169.49x = 18,247.70 × 6,243.94
  4. Step 4: Simplify right side
    12,169.49x = 113,937,421.48
  5. Step 5: Solve for x
    x = 113,937,421.48/12,169.49
  6. Step 6: Final answer
    x = 9,362.55

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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.