Home / 12,890.44-17,787.54-7,297.48

Finding the Fourth Proportional to 12,890.44, 17,787.54 and 7,297.48

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Solution

The fourth proportional to 12,890.44, 17,787.54 and 7,297.48 is: 10,069.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,890.44 : 17,787.54 = 7,297.48 : x
  2. Step 2: Convert to fraction form
    12,890.44/17,787.54 = 7,297.48/x
  3. Step 3: Cross multiply
    12,890.44x = 17,787.54 × 7,297.48
  4. Step 4: Simplify right side
    12,890.44x = 129,804,217.40
  5. Step 5: Solve for x
    x = 129,804,217.40/12,890.44
  6. Step 6: Final answer
    x = 10,069.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.