Home / 7,757.10-11,647.80-4,476.60

Finding the Fourth Proportional to 7,757.10, 11,647.80 and 4,476.60

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Solution

The fourth proportional to 7,757.10, 11,647.80 and 4,476.60 is: 6,721.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,757.10 : 11,647.80 = 4,476.60 : x
  2. Step 2: Convert to fraction form
    7,757.10/11,647.80 = 4,476.60/x
  3. Step 3: Cross multiply
    7,757.10x = 11,647.80 × 4,476.60
  4. Step 4: Simplify right side
    7,757.10x = 52,142,541.48
  5. Step 5: Solve for x
    x = 52,142,541.48/7,757.10
  6. Step 6: Final answer
    x = 6,721.91

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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.