Home / 6,299.63-8,638.20-6,135.60

Finding the Fourth Proportional to 6,299.63, 8,638.20 and 6,135.60

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Solution

The fourth proportional to 6,299.63, 8,638.20 and 6,135.60 is: 8,413.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,299.63 : 8,638.20 = 6,135.60 : x
  2. Step 2: Convert to fraction form
    6,299.63/8,638.20 = 6,135.60/x
  3. Step 3: Cross multiply
    6,299.63x = 8,638.20 × 6,135.60
  4. Step 4: Simplify right side
    6,299.63x = 53,000,539.92
  5. Step 5: Solve for x
    x = 53,000,539.92/6,299.63
  6. Step 6: Final answer
    x = 8,413.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.