Home / 12,127.73-16,735.34-6,821.52

Finding the Fourth Proportional to 12,127.73, 16,735.34 and 6,821.52

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Solution

The fourth proportional to 12,127.73, 16,735.34 and 6,821.52 is: 9,413.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127.73 : 16,735.34 = 6,821.52 : x
  2. Step 2: Convert to fraction form
    12,127.73/16,735.34 = 6,821.52/x
  3. Step 3: Cross multiply
    12,127.73x = 16,735.34 × 6,821.52
  4. Step 4: Simplify right side
    12,127.73x = 114,160,410.81
  5. Step 5: Solve for x
    x = 114,160,410.81/12,127.73
  6. Step 6: Final answer
    x = 9,413.18

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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.