Home / 8,674.30-13,003.80-3,126.34

Finding the Fourth Proportional to 8,674.30, 13,003.80 and 3,126.34

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Solution

The fourth proportional to 8,674.30, 13,003.80 and 3,126.34 is: 4,686.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.30 : 13,003.80 = 3,126.34 : x
  2. Step 2: Convert to fraction form
    8,674.30/13,003.80 = 3,126.34/x
  3. Step 3: Cross multiply
    8,674.30x = 13,003.80 × 3,126.34
  4. Step 4: Simplify right side
    8,674.30x = 40,654,300.09
  5. Step 5: Solve for x
    x = 40,654,300.09/8,674.30
  6. Step 6: Final answer
    x = 4,686.75

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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.