Home / 16,912.78-25,362.60-5,817.40

Finding the Fourth Proportional to 16,912.78, 25,362.60 and 5,817.40

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Solution

The fourth proportional to 16,912.78, 25,362.60 and 5,817.40 is: 8,723.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,912.78 : 25,362.60 = 5,817.40 : x
  2. Step 2: Convert to fraction form
    16,912.78/25,362.60 = 5,817.40/x
  3. Step 3: Cross multiply
    16,912.78x = 25,362.60 × 5,817.40
  4. Step 4: Simplify right side
    16,912.78x = 147,544,389.24
  5. Step 5: Solve for x
    x = 147,544,389.24/16,912.78
  6. Step 6: Final answer
    x = 8,723.84

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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.