Home / 11,915.58-16,442.88-6,610.38

Finding the Fourth Proportional to 11,915.58, 16,442.88 and 6,610.38

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Solution

The fourth proportional to 11,915.58, 16,442.88 and 6,610.38 is: 9,121.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,915.58 : 16,442.88 = 6,610.38 : x
  2. Step 2: Convert to fraction form
    11,915.58/16,442.88 = 6,610.38/x
  3. Step 3: Cross multiply
    11,915.58x = 16,442.88 × 6,610.38
  4. Step 4: Simplify right side
    11,915.58x = 108,693,685.09
  5. Step 5: Solve for x
    x = 108,693,685.09/11,915.58
  6. Step 6: Final answer
    x = 9,121.98

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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.