Home / 10,136.21-15,205.08-2,740.70

Finding the Fourth Proportional to 10,136.21, 15,205.08 and 2,740.70

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Solution

The fourth proportional to 10,136.21, 15,205.08 and 2,740.70 is: 4,111.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,136.21 : 15,205.08 = 2,740.70 : x
  2. Step 2: Convert to fraction form
    10,136.21/15,205.08 = 2,740.70/x
  3. Step 3: Cross multiply
    10,136.21x = 15,205.08 × 2,740.70
  4. Step 4: Simplify right side
    10,136.21x = 41,672,611.05
  5. Step 5: Solve for x
    x = 41,672,611.05/10,136.21
  6. Step 6: Final answer
    x = 4,111.26

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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.