Home / 8,678.88-13,016.96-2,835.46

Finding the Fourth Proportional to 8,678.88, 13,016.96 and 2,835.46

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Solution

The fourth proportional to 8,678.88, 13,016.96 and 2,835.46 is: 4,252.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.88 : 13,016.96 = 2,835.46 : x
  2. Step 2: Convert to fraction form
    8,678.88/13,016.96 = 2,835.46/x
  3. Step 3: Cross multiply
    8,678.88x = 13,016.96 × 2,835.46
  4. Step 4: Simplify right side
    8,678.88x = 36,909,069.40
  5. Step 5: Solve for x
    x = 36,909,069.40/8,678.88
  6. Step 6: Final answer
    x = 4,252.75

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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.