Home / 12,222.99-16,868.12-6,917.69

Finding the Fourth Proportional to 12,222.99, 16,868.12 and 6,917.69

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Solution

The fourth proportional to 12,222.99, 16,868.12 and 6,917.69 is: 9,546.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.99 : 16,868.12 = 6,917.69 : x
  2. Step 2: Convert to fraction form
    12,222.99/16,868.12 = 6,917.69/x
  3. Step 3: Cross multiply
    12,222.99x = 16,868.12 × 6,917.69
  4. Step 4: Simplify right side
    12,222.99x = 116,688,340.70
  5. Step 5: Solve for x
    x = 116,688,340.70/12,222.99
  6. Step 6: Final answer
    x = 9,546.63

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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.