Home / 15,860.06-21,884.79-8,785.58

Finding the Fourth Proportional to 15,860.06, 21,884.79 and 8,785.58

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Solution

The fourth proportional to 15,860.06, 21,884.79 and 8,785.58 is: 12,122.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,860.06 : 21,884.79 = 8,785.58 : x
  2. Step 2: Convert to fraction form
    15,860.06/21,884.79 = 8,785.58/x
  3. Step 3: Cross multiply
    15,860.06x = 21,884.79 × 8,785.58
  4. Step 4: Simplify right side
    15,860.06x = 192,270,573.33
  5. Step 5: Solve for x
    x = 192,270,573.33/15,860.06
  6. Step 6: Final answer
    x = 12,122.94

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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.