Home / 8,836.16-13,257.92-2,989.60

Finding the Fourth Proportional to 8,836.16, 13,257.92 and 2,989.60

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Solution

The fourth proportional to 8,836.16, 13,257.92 and 2,989.60 is: 4,485.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,836.16 : 13,257.92 = 2,989.60 : x
  2. Step 2: Convert to fraction form
    8,836.16/13,257.92 = 2,989.60/x
  3. Step 3: Cross multiply
    8,836.16x = 13,257.92 × 2,989.60
  4. Step 4: Simplify right side
    8,836.16x = 39,635,877.63
  5. Step 5: Solve for x
    x = 39,635,877.63/8,836.16
  6. Step 6: Final answer
    x = 4,485.65

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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.