Home / 12,170.74-16,795.50-6,867.28

Finding the Fourth Proportional to 12,170.74, 16,795.50 and 6,867.28

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Solution

The fourth proportional to 12,170.74, 16,795.50 and 6,867.28 is: 9,476.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,170.74 : 16,795.50 = 6,867.28 : x
  2. Step 2: Convert to fraction form
    12,170.74/16,795.50 = 6,867.28/x
  3. Step 3: Cross multiply
    12,170.74x = 16,795.50 × 6,867.28
  4. Step 4: Simplify right side
    12,170.74x = 115,339,401.24
  5. Step 5: Solve for x
    x = 115,339,401.24/12,170.74
  6. Step 6: Final answer
    x = 9,476.78

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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.