Home / 7,915.02-11,872.53-2,072.13

Finding the Fourth Proportional to 7,915.02, 11,872.53 and 2,072.13

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Solution

The fourth proportional to 7,915.02, 11,872.53 and 2,072.13 is: 3,108.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.02 : 11,872.53 = 2,072.13 : x
  2. Step 2: Convert to fraction form
    7,915.02/11,872.53 = 2,072.13/x
  3. Step 3: Cross multiply
    7,915.02x = 11,872.53 × 2,072.13
  4. Step 4: Simplify right side
    7,915.02x = 24,601,425.59
  5. Step 5: Solve for x
    x = 24,601,425.59/7,915.02
  6. Step 6: Final answer
    x = 3,108.20

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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.