Home / 8,739.41-13,108.95-2,165.60

Finding the Fourth Proportional to 8,739.41, 13,108.95 and 2,165.60

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Solution

The fourth proportional to 8,739.41, 13,108.95 and 2,165.60 is: 3,248.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739.41 : 13,108.95 = 2,165.60 : x
  2. Step 2: Convert to fraction form
    8,739.41/13,108.95 = 2,165.60/x
  3. Step 3: Cross multiply
    8,739.41x = 13,108.95 × 2,165.60
  4. Step 4: Simplify right side
    8,739.41x = 28,388,676.58
  5. Step 5: Solve for x
    x = 28,388,676.58/8,739.41
  6. Step 6: Final answer
    x = 3,248.35

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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.