Home / 7,915.26-11,873.38-2,649.98

Finding the Fourth Proportional to 7,915.26, 11,873.38 and 2,649.98

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Solution

The fourth proportional to 7,915.26, 11,873.38 and 2,649.98 is: 3,975.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.26 : 11,873.38 = 2,649.98 : x
  2. Step 2: Convert to fraction form
    7,915.26/11,873.38 = 2,649.98/x
  3. Step 3: Cross multiply
    7,915.26x = 11,873.38 × 2,649.98
  4. Step 4: Simplify right side
    7,915.26x = 31,464,219.53
  5. Step 5: Solve for x
    x = 31,464,219.53/7,915.26
  6. Step 6: Final answer
    x = 3,975.13

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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.