Home / 13,194.65-18,217.11-11,775.89

Finding the Fourth Proportional to 13,194.65, 18,217.11 and 11,775.89

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Solution

The fourth proportional to 13,194.65, 18,217.11 and 11,775.89 is: 16,258.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,194.65 : 18,217.11 = 11,775.89 : x
  2. Step 2: Convert to fraction form
    13,194.65/18,217.11 = 11,775.89/x
  3. Step 3: Cross multiply
    13,194.65x = 18,217.11 × 11,775.89
  4. Step 4: Simplify right side
    13,194.65x = 214,522,683.48
  5. Step 5: Solve for x
    x = 214,522,683.48/13,194.65
  6. Step 6: Final answer
    x = 16,258.31

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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.