Home / 8,678.80-13,020.23-2,835.46

Finding the Fourth Proportional to 8,678.80, 13,020.23 and 2,835.46

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Solution

The fourth proportional to 8,678.80, 13,020.23 and 2,835.46 is: 4,253.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.80 : 13,020.23 = 2,835.46 : x
  2. Step 2: Convert to fraction form
    8,678.80/13,020.23 = 2,835.46/x
  3. Step 3: Cross multiply
    8,678.80x = 13,020.23 × 2,835.46
  4. Step 4: Simplify right side
    8,678.80x = 36,918,341.36
  5. Step 5: Solve for x
    x = 36,918,341.36/8,678.80
  6. Step 6: Final answer
    x = 4,253.85

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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.