Home / 10,490.37-15,735.76-3,915.24

Finding the Fourth Proportional to 10,490.37, 15,735.76 and 3,915.24

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Solution

The fourth proportional to 10,490.37, 15,735.76 and 3,915.24 is: 5,872.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,490.37 : 15,735.76 = 3,915.24 : x
  2. Step 2: Convert to fraction form
    10,490.37/15,735.76 = 3,915.24/x
  3. Step 3: Cross multiply
    10,490.37x = 15,735.76 × 3,915.24
  4. Step 4: Simplify right side
    10,490.37x = 61,609,257.41
  5. Step 5: Solve for x
    x = 61,609,257.41/10,490.37
  6. Step 6: Final answer
    x = 5,872.94

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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.