Home / 8,758.84-13,139.36-3,211.96

Finding the Fourth Proportional to 8,758.84, 13,139.36 and 3,211.96

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Solution

The fourth proportional to 8,758.84, 13,139.36 and 3,211.96 is: 4,818.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,758.84 : 13,139.36 = 3,211.96 : x
  2. Step 2: Convert to fraction form
    8,758.84/13,139.36 = 3,211.96/x
  3. Step 3: Cross multiply
    8,758.84x = 13,139.36 × 3,211.96
  4. Step 4: Simplify right side
    8,758.84x = 42,203,098.75
  5. Step 5: Solve for x
    x = 42,203,098.75/8,758.84
  6. Step 6: Final answer
    x = 4,818.34

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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.