Home / 10,915.14-16,372.74-3,520.14

Finding the Fourth Proportional to 10,915.14, 16,372.74 and 3,520.14

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Solution

The fourth proportional to 10,915.14, 16,372.74 and 3,520.14 is: 5,280.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,915.14 : 16,372.74 = 3,520.14 : x
  2. Step 2: Convert to fraction form
    10,915.14/16,372.74 = 3,520.14/x
  3. Step 3: Cross multiply
    10,915.14x = 16,372.74 × 3,520.14
  4. Step 4: Simplify right side
    10,915.14x = 57,634,336.98
  5. Step 5: Solve for x
    x = 57,634,336.98/10,915.14
  6. Step 6: Final answer
    x = 5,280.22

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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.