Home / 13,608.01-18,765.24-12,814.30

Finding the Fourth Proportional to 13,608.01, 18,765.24 and 12,814.30

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Solution

The fourth proportional to 13,608.01, 18,765.24 and 12,814.30 is: 17,670.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.01 : 18,765.24 = 12,814.30 : x
  2. Step 2: Convert to fraction form
    13,608.01/18,765.24 = 12,814.30/x
  3. Step 3: Cross multiply
    13,608.01x = 18,765.24 × 12,814.30
  4. Step 4: Simplify right side
    13,608.01x = 240,463,414.93
  5. Step 5: Solve for x
    x = 240,463,414.93/13,608.01
  6. Step 6: Final answer
    x = 17,670.73

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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.