Home / 16,977.12-25,431.12-7,715.04

Finding the Fourth Proportional to 16,977.12, 25,431.12 and 7,715.04

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Solution

The fourth proportional to 16,977.12, 25,431.12 and 7,715.04 is: 11,556.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,977.12 : 25,431.12 = 7,715.04 : x
  2. Step 2: Convert to fraction form
    16,977.12/25,431.12 = 7,715.04/x
  3. Step 3: Cross multiply
    16,977.12x = 25,431.12 × 7,715.04
  4. Step 4: Simplify right side
    16,977.12x = 196,202,108.04
  5. Step 5: Solve for x
    x = 196,202,108.04/16,977.12
  6. Step 6: Final answer
    x = 11,556.85

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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.