Home / 8,634.53-11,915.38-4,857.90

Finding the Fourth Proportional to 8,634.53, 11,915.38 and 4,857.90

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Solution

The fourth proportional to 8,634.53, 11,915.38 and 4,857.90 is: 6,703.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,634.53 : 11,915.38 = 4,857.90 : x
  2. Step 2: Convert to fraction form
    8,634.53/11,915.38 = 4,857.90/x
  3. Step 3: Cross multiply
    8,634.53x = 11,915.38 × 4,857.90
  4. Step 4: Simplify right side
    8,634.53x = 57,883,724.50
  5. Step 5: Solve for x
    x = 57,883,724.50/8,634.53
  6. Step 6: Final answer
    x = 6,703.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.