Home / 16,968.02-25,455.60-5,120.75

Finding the Fourth Proportional to 16,968.02, 25,455.60 and 5,120.75

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Solution

The fourth proportional to 16,968.02, 25,455.60 and 5,120.75 is: 7,682.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,968.02 : 25,455.60 = 5,120.75 : x
  2. Step 2: Convert to fraction form
    16,968.02/25,455.60 = 5,120.75/x
  3. Step 3: Cross multiply
    16,968.02x = 25,455.60 × 5,120.75
  4. Step 4: Simplify right side
    16,968.02x = 130,351,827.34
  5. Step 5: Solve for x
    x = 130,351,827.34/16,968.02
  6. Step 6: Final answer
    x = 7,682.21

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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.