Home / 15,899.58-21,942.56-8,825.95

Finding the Fourth Proportional to 15,899.58, 21,942.56 and 8,825.95

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Solution

The fourth proportional to 15,899.58, 21,942.56 and 8,825.95 is: 12,180.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,899.58 : 21,942.56 = 8,825.95 : x
  2. Step 2: Convert to fraction form
    15,899.58/21,942.56 = 8,825.95/x
  3. Step 3: Cross multiply
    15,899.58x = 21,942.56 × 8,825.95
  4. Step 4: Simplify right side
    15,899.58x = 193,663,986.93
  5. Step 5: Solve for x
    x = 193,663,986.93/15,899.58
  6. Step 6: Final answer
    x = 12,180.45

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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.