Home / 8,694.45-13,038.58-3,146.36

Finding the Fourth Proportional to 8,694.45, 13,038.58 and 3,146.36

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Solution

The fourth proportional to 8,694.45, 13,038.58 and 3,146.36 is: 4,718.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,694.45 : 13,038.58 = 3,146.36 : x
  2. Step 2: Convert to fraction form
    8,694.45/13,038.58 = 3,146.36/x
  3. Step 3: Cross multiply
    8,694.45x = 13,038.58 × 3,146.36
  4. Step 4: Simplify right side
    8,694.45x = 41,023,993.51
  5. Step 5: Solve for x
    x = 41,023,993.51/8,694.45
  6. Step 6: Final answer
    x = 4,718.41

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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.