Home / 8,720.98-13,077.37-3,170.41

Finding the Fourth Proportional to 8,720.98, 13,077.37 and 3,170.41

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Solution

The fourth proportional to 8,720.98, 13,077.37 and 3,170.41 is: 4,754.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.98 : 13,077.37 = 3,170.41 : x
  2. Step 2: Convert to fraction form
    8,720.98/13,077.37 = 3,170.41/x
  3. Step 3: Cross multiply
    8,720.98x = 13,077.37 × 3,170.41
  4. Step 4: Simplify right side
    8,720.98x = 41,460,624.62
  5. Step 5: Solve for x
    x = 41,460,624.62/8,720.98
  6. Step 6: Final answer
    x = 4,754.12

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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.