Home / 13,876.56-20,796.95-12,090.38

Finding the Fourth Proportional to 13,876.56, 20,796.95 and 12,090.38

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Solution

The fourth proportional to 13,876.56, 20,796.95 and 12,090.38 is: 18,119.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,876.56 : 20,796.95 = 12,090.38 : x
  2. Step 2: Convert to fraction form
    13,876.56/20,796.95 = 12,090.38/x
  3. Step 3: Cross multiply
    13,876.56x = 20,796.95 × 12,090.38
  4. Step 4: Simplify right side
    13,876.56x = 251,443,028.34
  5. Step 5: Solve for x
    x = 251,443,028.34/13,876.56
  6. Step 6: Final answer
    x = 18,119.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.