Home / 6,147.11-8,487.77-4,728.60

Finding the Fourth Proportional to 6,147.11, 8,487.77 and 4,728.60

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Solution

The fourth proportional to 6,147.11, 8,487.77 and 4,728.60 is: 6,529.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,147.11 : 8,487.77 = 4,728.60 : x
  2. Step 2: Convert to fraction form
    6,147.11/8,487.77 = 4,728.60/x
  3. Step 3: Cross multiply
    6,147.11x = 8,487.77 × 4,728.60
  4. Step 4: Simplify right side
    6,147.11x = 40,135,245.58
  5. Step 5: Solve for x
    x = 40,135,245.58/6,147.11
  6. Step 6: Final answer
    x = 6,529.12

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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.