Home / 7,915.07-11,875.46-3,702.09

Finding the Fourth Proportional to 7,915.07, 11,875.46 and 3,702.09

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Solution

The fourth proportional to 7,915.07, 11,875.46 and 3,702.09 is: 5,554.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.07 : 11,875.46 = 3,702.09 : x
  2. Step 2: Convert to fraction form
    7,915.07/11,875.46 = 3,702.09/x
  3. Step 3: Cross multiply
    7,915.07x = 11,875.46 × 3,702.09
  4. Step 4: Simplify right side
    7,915.07x = 43,964,003.20
  5. Step 5: Solve for x
    x = 43,964,003.20/7,915.07
  6. Step 6: Final answer
    x = 5,554.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.