Home / 16,968.12-25,455.84-5,120.91

Finding the Fourth Proportional to 16,968.12, 25,455.84 and 5,120.91

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Solution

The fourth proportional to 16,968.12, 25,455.84 and 5,120.91 is: 7,682.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,968.12 : 25,455.84 = 5,120.91 : x
  2. Step 2: Convert to fraction form
    16,968.12/25,455.84 = 5,120.91/x
  3. Step 3: Cross multiply
    16,968.12x = 25,455.84 × 5,120.91
  4. Step 4: Simplify right side
    16,968.12x = 130,356,975.03
  5. Step 5: Solve for x
    x = 130,356,975.03/16,968.12
  6. Step 6: Final answer
    x = 7,682.46

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1.5x scale

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.