Home / 7,876.98-11,812.53-2,611.02

Finding the Fourth Proportional to 7,876.98, 11,812.53 and 2,611.02

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Solution

The fourth proportional to 7,876.98, 11,812.53 and 2,611.02 is: 3,915.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,876.98 : 11,812.53 = 2,611.02 : x
  2. Step 2: Convert to fraction form
    7,876.98/11,812.53 = 2,611.02/x
  3. Step 3: Cross multiply
    7,876.98x = 11,812.53 × 2,611.02
  4. Step 4: Simplify right side
    7,876.98x = 30,842,752.08
  5. Step 5: Solve for x
    x = 30,842,752.08/7,876.98
  6. Step 6: Final answer
    x = 3,915.56

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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.