Home / 10,611.42-15,916.05-2,821.02

Finding the Fourth Proportional to 10,611.42, 15,916.05 and 2,821.02

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Solution

The fourth proportional to 10,611.42, 15,916.05 and 2,821.02 is: 4,231.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,611.42 : 15,916.05 = 2,821.02 : x
  2. Step 2: Convert to fraction form
    10,611.42/15,916.05 = 2,821.02/x
  3. Step 3: Cross multiply
    10,611.42x = 15,916.05 × 2,821.02
  4. Step 4: Simplify right side
    10,611.42x = 44,899,495.37
  5. Step 5: Solve for x
    x = 44,899,495.37/10,611.42
  6. Step 6: Final answer
    x = 4,231.24

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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.