Home / 12,246.09-16,898.22-6,939.78

Finding the Fourth Proportional to 12,246.09, 16,898.22 and 6,939.78

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Solution

The fourth proportional to 12,246.09, 16,898.22 and 6,939.78 is: 9,576.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,246.09 : 16,898.22 = 6,939.78 : x
  2. Step 2: Convert to fraction form
    12,246.09/16,898.22 = 6,939.78/x
  3. Step 3: Cross multiply
    12,246.09x = 16,898.22 × 6,939.78
  4. Step 4: Simplify right side
    12,246.09x = 117,269,929.19
  5. Step 5: Solve for x
    x = 117,269,929.19/12,246.09
  6. Step 6: Final answer
    x = 9,576.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.