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Finding the Fourth Proportional to 8,858.58, 13,289.92 and 3,015.19

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Solution

The fourth proportional to 8,858.58, 13,289.92 and 3,015.19 is: 4,523.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.58 : 13,289.92 = 3,015.19 : x
  2. Step 2: Convert to fraction form
    8,858.58/13,289.92 = 3,015.19/x
  3. Step 3: Cross multiply
    8,858.58x = 13,289.92 × 3,015.19
  4. Step 4: Simplify right side
    8,858.58x = 40,071,633.88
  5. Step 5: Solve for x
    x = 40,071,633.88/8,858.58
  6. Step 6: Final answer
    x = 4,523.48

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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.