Home / 15,925.44-21,974.52-8,851.68

Finding the Fourth Proportional to 15,925.44, 21,974.52 and 8,851.68

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Solution

The fourth proportional to 15,925.44, 21,974.52 and 8,851.68 is: 12,213.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,925.44 : 21,974.52 = 8,851.68 : x
  2. Step 2: Convert to fraction form
    15,925.44/21,974.52 = 8,851.68/x
  3. Step 3: Cross multiply
    15,925.44x = 21,974.52 × 8,851.68
  4. Step 4: Simplify right side
    15,925.44x = 194,511,419.19
  5. Step 5: Solve for x
    x = 194,511,419.19/15,925.44
  6. Step 6: Final answer
    x = 12,213.88

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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.