Home / 8,485.09-12,727.62-4,785.64

Finding the Fourth Proportional to 8,485.09, 12,727.62 and 4,785.64

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Solution

The fourth proportional to 8,485.09, 12,727.62 and 4,785.64 is: 7,178.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.09 : 12,727.62 = 4,785.64 : x
  2. Step 2: Convert to fraction form
    8,485.09/12,727.62 = 4,785.64/x
  3. Step 3: Cross multiply
    8,485.09x = 12,727.62 × 4,785.64
  4. Step 4: Simplify right side
    8,485.09x = 60,909,775.56
  5. Step 5: Solve for x
    x = 60,909,775.56/8,485.09
  6. Step 6: Final answer
    x = 7,178.45

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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.