Home / 12,383.20-18,576.60-5,809.60

Finding the Fourth Proportional to 12,383.20, 18,576.60 and 5,809.60

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Solution

The fourth proportional to 12,383.20, 18,576.60 and 5,809.60 is: 8,715.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.20 : 18,576.60 = 5,809.60 : x
  2. Step 2: Convert to fraction form
    12,383.20/18,576.60 = 5,809.60/x
  3. Step 3: Cross multiply
    12,383.20x = 18,576.60 × 5,809.60
  4. Step 4: Simplify right side
    12,383.20x = 107,922,615.36
  5. Step 5: Solve for x
    x = 107,922,615.36/12,383.20
  6. Step 6: Final answer
    x = 8,715.24

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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.