Home / 13,204.14-18,223.29-8,171.70

Finding the Fourth Proportional to 13,204.14, 18,223.29 and 8,171.70

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Solution

The fourth proportional to 13,204.14, 18,223.29 and 8,171.70 is: 11,277.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,204.14 : 18,223.29 = 8,171.70 : x
  2. Step 2: Convert to fraction form
    13,204.14/18,223.29 = 8,171.70/x
  3. Step 3: Cross multiply
    13,204.14x = 18,223.29 × 8,171.70
  4. Step 4: Simplify right side
    13,204.14x = 148,915,258.89
  5. Step 5: Solve for x
    x = 148,915,258.89/13,204.14
  6. Step 6: Final answer
    x = 11,277.92

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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.