Home / 12,196.68-16,830.50-6,891.99

Finding the Fourth Proportional to 12,196.68, 16,830.50 and 6,891.99

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Solution

The fourth proportional to 12,196.68, 16,830.50 and 6,891.99 is: 9,510.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,196.68 : 16,830.50 = 6,891.99 : x
  2. Step 2: Convert to fraction form
    12,196.68/16,830.50 = 6,891.99/x
  3. Step 3: Cross multiply
    12,196.68x = 16,830.50 × 6,891.99
  4. Step 4: Simplify right side
    12,196.68x = 115,995,603.24
  5. Step 5: Solve for x
    x = 115,995,603.24/12,196.68
  6. Step 6: Final answer
    x = 9,510.42

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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.