Home / 15,694.68-21,627.40-11,205.80

Finding the Fourth Proportional to 15,694.68, 21,627.40 and 11,205.80

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Solution

The fourth proportional to 15,694.68, 21,627.40 and 11,205.80 is: 15,441.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,694.68 : 21,627.40 = 11,205.80 : x
  2. Step 2: Convert to fraction form
    15,694.68/21,627.40 = 11,205.80/x
  3. Step 3: Cross multiply
    15,694.68x = 21,627.40 × 11,205.80
  4. Step 4: Simplify right side
    15,694.68x = 242,352,318.92
  5. Step 5: Solve for x
    x = 242,352,318.92/15,694.68
  6. Step 6: Final answer
    x = 15,441.69

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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.