Home / 7,735.20-10,667.70-6,242.64

Finding the Fourth Proportional to 7,735.20, 10,667.70 and 6,242.64

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Solution

The fourth proportional to 7,735.20, 10,667.70 and 6,242.64 is: 8,609.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,735.20 : 10,667.70 = 6,242.64 : x
  2. Step 2: Convert to fraction form
    7,735.20/10,667.70 = 6,242.64/x
  3. Step 3: Cross multiply
    7,735.20x = 10,667.70 × 6,242.64
  4. Step 4: Simplify right side
    7,735.20x = 66,594,610.73
  5. Step 5: Solve for x
    x = 66,594,610.73/7,735.20
  6. Step 6: Final answer
    x = 8,609.29

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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.