Home / 12,378.92-17,083.82-7,073.62

Finding the Fourth Proportional to 12,378.92, 17,083.82 and 7,073.62

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Solution

The fourth proportional to 12,378.92, 17,083.82 and 7,073.62 is: 9,762.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,378.92 : 17,083.82 = 7,073.62 : x
  2. Step 2: Convert to fraction form
    12,378.92/17,083.82 = 7,073.62/x
  3. Step 3: Cross multiply
    12,378.92x = 17,083.82 × 7,073.62
  4. Step 4: Simplify right side
    12,378.92x = 120,844,450.83
  5. Step 5: Solve for x
    x = 120,844,450.83/12,378.92
  6. Step 6: Final answer
    x = 9,762.12

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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.