Home / 13,992.56-19,309.60-8,403.52

Finding the Fourth Proportional to 13,992.56, 19,309.60 and 8,403.52

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Solution

The fourth proportional to 13,992.56, 19,309.60 and 8,403.52 is: 11,596.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,992.56 : 19,309.60 = 8,403.52 : x
  2. Step 2: Convert to fraction form
    13,992.56/19,309.60 = 8,403.52/x
  3. Step 3: Cross multiply
    13,992.56x = 19,309.60 × 8,403.52
  4. Step 4: Simplify right side
    13,992.56x = 162,268,609.79
  5. Step 5: Solve for x
    x = 162,268,609.79/13,992.56
  6. Step 6: Final answer
    x = 11,596.78

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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.