Home / 12,188.57-18,283.52-3,869.25

Finding the Fourth Proportional to 12,188.57, 18,283.52 and 3,869.25

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Solution

The fourth proportional to 12,188.57, 18,283.52 and 3,869.25 is: 5,804.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,188.57 : 18,283.52 = 3,869.25 : x
  2. Step 2: Convert to fraction form
    12,188.57/18,283.52 = 3,869.25/x
  3. Step 3: Cross multiply
    12,188.57x = 18,283.52 × 3,869.25
  4. Step 4: Simplify right side
    12,188.57x = 70,743,490.41
  5. Step 5: Solve for x
    x = 70,743,490.41/12,188.57
  6. Step 6: Final answer
    x = 5,804.09

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1.5x scale

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.