Home / 6,829.20-10,254.60-5,187.60

Finding the Fourth Proportional to 6,829.20, 10,254.60 and 5,187.60

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Solution

The fourth proportional to 6,829.20, 10,254.60 and 5,187.60 is: 7,789.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,829.20 : 10,254.60 = 5,187.60 : x
  2. Step 2: Convert to fraction form
    6,829.20/10,254.60 = 5,187.60/x
  3. Step 3: Cross multiply
    6,829.20x = 10,254.60 × 5,187.60
  4. Step 4: Simplify right side
    6,829.20x = 53,196,762.96
  5. Step 5: Solve for x
    x = 53,196,762.96/6,829.20
  6. Step 6: Final answer
    x = 7,789.60

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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.