Home / 13,799.48-18,995.20-12,028

Finding the Fourth Proportional to 13,799.48, 18,995.20 and 12,028

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Solution

The fourth proportional to 13,799.48, 18,995.20 and 12,028 is: 16,556.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,799.48 : 18,995.20 = 12,028 : x
  2. Step 2: Convert to fraction form
    13,799.48/18,995.20 = 12,028/x
  3. Step 3: Cross multiply
    13,799.48x = 18,995.20 × 12,028
  4. Step 4: Simplify right side
    13,799.48x = 228,474,265.60
  5. Step 5: Solve for x
    x = 228,474,265.60/13,799.48
  6. Step 6: Final answer
    x = 16,556.73

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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.