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Finding the Fourth Proportional to 8,858.67, 13,296.20 and 4,479.20

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Solution

The fourth proportional to 8,858.67, 13,296.20 and 4,479.20 is: 6,722.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.67 : 13,296.20 = 4,479.20 : x
  2. Step 2: Convert to fraction form
    8,858.67/13,296.20 = 4,479.20/x
  3. Step 3: Cross multiply
    8,858.67x = 13,296.20 × 4,479.20
  4. Step 4: Simplify right side
    8,858.67x = 59,556,325.22
  5. Step 5: Solve for x
    x = 59,556,325.22/8,858.67
  6. Step 6: Final answer
    x = 6,722.94

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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.