Home / 12,684.19-17,491.83-11,438.26

Finding the Fourth Proportional to 12,684.19, 17,491.83 and 11,438.26

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Solution

The fourth proportional to 12,684.19, 17,491.83 and 11,438.26 is: 15,773.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,684.19 : 17,491.83 = 11,438.26 : x
  2. Step 2: Convert to fraction form
    12,684.19/17,491.83 = 11,438.26/x
  3. Step 3: Cross multiply
    12,684.19x = 17,491.83 × 11,438.26
  4. Step 4: Simplify right side
    12,684.19x = 200,076,011.96
  5. Step 5: Solve for x
    x = 200,076,011.96/12,684.19
  6. Step 6: Final answer
    x = 15,773.65

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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.