Home / 8,486.08-12,729.60-5,197.12

Finding the Fourth Proportional to 8,486.08, 12,729.60 and 5,197.12

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Solution

The fourth proportional to 8,486.08, 12,729.60 and 5,197.12 is: 7,795.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,486.08 : 12,729.60 = 5,197.12 : x
  2. Step 2: Convert to fraction form
    8,486.08/12,729.60 = 5,197.12/x
  3. Step 3: Cross multiply
    8,486.08x = 12,729.60 × 5,197.12
  4. Step 4: Simplify right side
    8,486.08x = 66,157,258.75
  5. Step 5: Solve for x
    x = 66,157,258.75/8,486.08
  6. Step 6: Final answer
    x = 7,795.97

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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.