Home / 12,966.07-17,855.49-11,263.80

Finding the Fourth Proportional to 12,966.07, 17,855.49 and 11,263.80

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Solution

The fourth proportional to 12,966.07, 17,855.49 and 11,263.80 is: 15,511.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,966.07 : 17,855.49 = 11,263.80 : x
  2. Step 2: Convert to fraction form
    12,966.07/17,855.49 = 11,263.80/x
  3. Step 3: Cross multiply
    12,966.07x = 17,855.49 × 11,263.80
  4. Step 4: Simplify right side
    12,966.07x = 201,120,578.98
  5. Step 5: Solve for x
    x = 201,120,578.98/12,966.07
  6. Step 6: Final answer
    x = 15,511.30

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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.