Home / 18,090.72-24,973.92-11,379.60

Finding the Fourth Proportional to 18,090.72, 24,973.92 and 11,379.60

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Solution

The fourth proportional to 18,090.72, 24,973.92 and 11,379.60 is: 15,709.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090.72 : 24,973.92 = 11,379.60 : x
  2. Step 2: Convert to fraction form
    18,090.72/24,973.92 = 11,379.60/x
  3. Step 3: Cross multiply
    18,090.72x = 24,973.92 × 11,379.60
  4. Step 4: Simplify right side
    18,090.72x = 284,193,220.03
  5. Step 5: Solve for x
    x = 284,193,220.03/18,090.72
  6. Step 6: Final answer
    x = 15,709.34

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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.