Home / 12,250.45-16,905.80-6,945.15

Finding the Fourth Proportional to 12,250.45, 16,905.80 and 6,945.15

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Solution

The fourth proportional to 12,250.45, 16,905.80 and 6,945.15 is: 9,584.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,250.45 : 16,905.80 = 6,945.15 : x
  2. Step 2: Convert to fraction form
    12,250.45/16,905.80 = 6,945.15/x
  3. Step 3: Cross multiply
    12,250.45x = 16,905.80 × 6,945.15
  4. Step 4: Simplify right side
    12,250.45x = 117,413,316.87
  5. Step 5: Solve for x
    x = 117,413,316.87/12,250.45
  6. Step 6: Final answer
    x = 9,584.41

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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.