Home / 11,147.60-15,374.81-9,474.54

Finding the Fourth Proportional to 11,147.60, 15,374.81 and 9,474.54

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Solution

The fourth proportional to 11,147.60, 15,374.81 and 9,474.54 is: 13,067.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.60 : 15,374.81 = 9,474.54 : x
  2. Step 2: Convert to fraction form
    11,147.60/15,374.81 = 9,474.54/x
  3. Step 3: Cross multiply
    11,147.60x = 15,374.81 × 9,474.54
  4. Step 4: Simplify right side
    11,147.60x = 145,669,204.96
  5. Step 5: Solve for x
    x = 145,669,204.96/11,147.60
  6. Step 6: Final answer
    x = 13,067.32

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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.