Home / 7,915.92-11,877.93-4,020.36

Finding the Fourth Proportional to 7,915.92, 11,877.93 and 4,020.36

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Solution

The fourth proportional to 7,915.92, 11,877.93 and 4,020.36 is: 6,032.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.92 : 11,877.93 = 4,020.36 : x
  2. Step 2: Convert to fraction form
    7,915.92/11,877.93 = 4,020.36/x
  3. Step 3: Cross multiply
    7,915.92x = 11,877.93 × 4,020.36
  4. Step 4: Simplify right side
    7,915.92x = 47,753,554.65
  5. Step 5: Solve for x
    x = 47,753,554.65/7,915.92
  6. Step 6: Final answer
    x = 6,032.60

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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.