Home / 12,125.36-16,733.40-6,821.12

Finding the Fourth Proportional to 12,125.36, 16,733.40 and 6,821.12

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Solution

The fourth proportional to 12,125.36, 16,733.40 and 6,821.12 is: 9,413.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.36 : 16,733.40 = 6,821.12 : x
  2. Step 2: Convert to fraction form
    12,125.36/16,733.40 = 6,821.12/x
  3. Step 3: Cross multiply
    12,125.36x = 16,733.40 × 6,821.12
  4. Step 4: Simplify right side
    12,125.36x = 114,140,529.41
  5. Step 5: Solve for x
    x = 114,140,529.41/12,125.36
  6. Step 6: Final answer
    x = 9,413.37

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Double scale
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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.