Home / 8,678.60-13,016.27-4,231.80

Finding the Fourth Proportional to 8,678.60, 13,016.27 and 4,231.80

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Solution

The fourth proportional to 8,678.60, 13,016.27 and 4,231.80 is: 6,346.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.60 : 13,016.27 = 4,231.80 : x
  2. Step 2: Convert to fraction form
    8,678.60/13,016.27 = 4,231.80/x
  3. Step 3: Cross multiply
    8,678.60x = 13,016.27 × 4,231.80
  4. Step 4: Simplify right side
    8,678.60x = 55,082,230.23
  5. Step 5: Solve for x
    x = 55,082,230.23/8,678.60
  6. Step 6: Final answer
    x = 6,346.91

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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.