Home / 12,173.90-16,799.85-6,868.74

Finding the Fourth Proportional to 12,173.90, 16,799.85 and 6,868.74

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Solution

The fourth proportional to 12,173.90, 16,799.85 and 6,868.74 is: 9,478.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,173.90 : 16,799.85 = 6,868.74 : x
  2. Step 2: Convert to fraction form
    12,173.90/16,799.85 = 6,868.74/x
  3. Step 3: Cross multiply
    12,173.90x = 16,799.85 × 6,868.74
  4. Step 4: Simplify right side
    12,173.90x = 115,393,738.69
  5. Step 5: Solve for x
    x = 115,393,738.69/12,173.90
  6. Step 6: Final answer
    x = 9,478.78

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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.