Home / 12,136.57-18,209.21-4,746.33

Finding the Fourth Proportional to 12,136.57, 18,209.21 and 4,746.33

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Solution

The fourth proportional to 12,136.57, 18,209.21 and 4,746.33 is: 7,121.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,136.57 : 18,209.21 = 4,746.33 : x
  2. Step 2: Convert to fraction form
    12,136.57/18,209.21 = 4,746.33/x
  3. Step 3: Cross multiply
    12,136.57x = 18,209.21 × 4,746.33
  4. Step 4: Simplify right side
    12,136.57x = 86,426,895.97
  5. Step 5: Solve for x
    x = 86,426,895.97/12,136.57
  6. Step 6: Final answer
    x = 7,121.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.