Home / 8,619.57-12,930.56-3,071.27

Finding the Fourth Proportional to 8,619.57, 12,930.56 and 3,071.27

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Solution

The fourth proportional to 8,619.57, 12,930.56 and 3,071.27 is: 4,607.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.57 : 12,930.56 = 3,071.27 : x
  2. Step 2: Convert to fraction form
    8,619.57/12,930.56 = 3,071.27/x
  3. Step 3: Cross multiply
    8,619.57x = 12,930.56 × 3,071.27
  4. Step 4: Simplify right side
    8,619.57x = 39,713,161.00
  5. Step 5: Solve for x
    x = 39,713,161.00/8,619.57
  6. Step 6: Final answer
    x = 4,607.33

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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.