Home / 16,986.08-25,479.12-7,620.96

Finding the Fourth Proportional to 16,986.08, 25,479.12 and 7,620.96

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Solution

The fourth proportional to 16,986.08, 25,479.12 and 7,620.96 is: 11,431.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,986.08 : 25,479.12 = 7,620.96 : x
  2. Step 2: Convert to fraction form
    16,986.08/25,479.12 = 7,620.96/x
  3. Step 3: Cross multiply
    16,986.08x = 25,479.12 × 7,620.96
  4. Step 4: Simplify right side
    16,986.08x = 194,175,354.36
  5. Step 5: Solve for x
    x = 194,175,354.36/16,986.08
  6. Step 6: Final answer
    x = 11,431.44

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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.