Home / 8,919.08-13,390.88-4,539.48

Finding the Fourth Proportional to 8,919.08, 13,390.88 and 4,539.48

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Solution

The fourth proportional to 8,919.08, 13,390.88 and 4,539.48 is: 6,815.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.08 : 13,390.88 = 4,539.48 : x
  2. Step 2: Convert to fraction form
    8,919.08/13,390.88 = 4,539.48/x
  3. Step 3: Cross multiply
    8,919.08x = 13,390.88 × 4,539.48
  4. Step 4: Simplify right side
    8,919.08x = 60,787,631.94
  5. Step 5: Solve for x
    x = 60,787,631.94/8,919.08
  6. Step 6: Final answer
    x = 6,815.46

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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.