Home / 6,728.40-10,092.60-5,259.60

Finding the Fourth Proportional to 6,728.40, 10,092.60 and 5,259.60

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Solution

The fourth proportional to 6,728.40, 10,092.60 and 5,259.60 is: 7,889.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,728.40 : 10,092.60 = 5,259.60 : x
  2. Step 2: Convert to fraction form
    6,728.40/10,092.60 = 5,259.60/x
  3. Step 3: Cross multiply
    6,728.40x = 10,092.60 × 5,259.60
  4. Step 4: Simplify right side
    6,728.40x = 53,083,038.96
  5. Step 5: Solve for x
    x = 53,083,038.96/6,728.40
  6. Step 6: Final answer
    x = 7,889.40

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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.