Home / 8,629.96-12,957.90-4,936.36

Finding the Fourth Proportional to 8,629.96, 12,957.90 and 4,936.36

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Solution

The fourth proportional to 8,629.96, 12,957.90 and 4,936.36 is: 7,411.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629.96 : 12,957.90 = 4,936.36 : x
  2. Step 2: Convert to fraction form
    8,629.96/12,957.90 = 4,936.36/x
  3. Step 3: Cross multiply
    8,629.96x = 12,957.90 × 4,936.36
  4. Step 4: Simplify right side
    8,629.96x = 63,964,859.24
  5. Step 5: Solve for x
    x = 63,964,859.24/8,629.96
  6. Step 6: Final answer
    x = 7,411.95

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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.