Home / 8,968.12-13,454.34-2,812.12

Finding the Fourth Proportional to 8,968.12, 13,454.34 and 2,812.12

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Solution

The fourth proportional to 8,968.12, 13,454.34 and 2,812.12 is: 4,218.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.12 : 13,454.34 = 2,812.12 : x
  2. Step 2: Convert to fraction form
    8,968.12/13,454.34 = 2,812.12/x
  3. Step 3: Cross multiply
    8,968.12x = 13,454.34 × 2,812.12
  4. Step 4: Simplify right side
    8,968.12x = 37,835,218.60
  5. Step 5: Solve for x
    x = 37,835,218.60/8,968.12
  6. Step 6: Final answer
    x = 4,218.86

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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.