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Finding the Fourth Proportional to 8,556.48, 12,830.40 and 4,659.84

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Solution

The fourth proportional to 8,556.48, 12,830.40 and 4,659.84 is: 6,987.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.48 : 12,830.40 = 4,659.84 : x
  2. Step 2: Convert to fraction form
    8,556.48/12,830.40 = 4,659.84/x
  3. Step 3: Cross multiply
    8,556.48x = 12,830.40 × 4,659.84
  4. Step 4: Simplify right side
    8,556.48x = 59,787,611.14
  5. Step 5: Solve for x
    x = 59,787,611.14/8,556.48
  6. Step 6: Final answer
    x = 6,987.41

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.