Home / 13,938.05-19,223.25-12,255.95

Finding the Fourth Proportional to 13,938.05, 19,223.25 and 12,255.95

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Solution

The fourth proportional to 13,938.05, 19,223.25 and 12,255.95 is: 16,903.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.05 : 19,223.25 = 12,255.95 : x
  2. Step 2: Convert to fraction form
    13,938.05/19,223.25 = 12,255.95/x
  3. Step 3: Cross multiply
    13,938.05x = 19,223.25 × 12,255.95
  4. Step 4: Simplify right side
    13,938.05x = 235,599,190.84
  5. Step 5: Solve for x
    x = 235,599,190.84/13,938.05
  6. Step 6: Final answer
    x = 16,903.31

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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.