Home / 8,717.85-13,077.90-3,170.43

Finding the Fourth Proportional to 8,717.85, 13,077.90 and 3,170.43

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Solution

The fourth proportional to 8,717.85, 13,077.90 and 3,170.43 is: 4,756.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.85 : 13,077.90 = 3,170.43 : x
  2. Step 2: Convert to fraction form
    8,717.85/13,077.90 = 3,170.43/x
  3. Step 3: Cross multiply
    8,717.85x = 13,077.90 × 3,170.43
  4. Step 4: Simplify right side
    8,717.85x = 41,462,566.50
  5. Step 5: Solve for x
    x = 41,462,566.50/8,717.85
  6. Step 6: Final answer
    x = 4,756.05

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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.