Home / 12,213.25-16,866.56-10,525.21

Finding the Fourth Proportional to 12,213.25, 16,866.56 and 10,525.21

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Solution

The fourth proportional to 12,213.25, 16,866.56 and 10,525.21 is: 14,535.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,213.25 : 16,866.56 = 10,525.21 : x
  2. Step 2: Convert to fraction form
    12,213.25/16,866.56 = 10,525.21/x
  3. Step 3: Cross multiply
    12,213.25x = 16,866.56 × 10,525.21
  4. Step 4: Simplify right side
    12,213.25x = 177,524,070.12
  5. Step 5: Solve for x
    x = 177,524,070.12/12,213.25
  6. Step 6: Final answer
    x = 14,535.37

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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.