Home / 12,419.44-18,607.24-12,113.28

Finding the Fourth Proportional to 12,419.44, 18,607.24 and 12,113.28

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Solution

The fourth proportional to 12,419.44, 18,607.24 and 12,113.28 is: 18,148.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,419.44 : 18,607.24 = 12,113.28 : x
  2. Step 2: Convert to fraction form
    12,419.44/18,607.24 = 12,113.28/x
  3. Step 3: Cross multiply
    12,419.44x = 18,607.24 × 12,113.28
  4. Step 4: Simplify right side
    12,419.44x = 225,394,708.15
  5. Step 5: Solve for x
    x = 225,394,708.15/12,419.44
  6. Step 6: Final answer
    x = 18,148.54

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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.