Home / 16,891.20-25,300.35-10,986.30

Finding the Fourth Proportional to 16,891.20, 25,300.35 and 10,986.30

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Solution

The fourth proportional to 16,891.20, 25,300.35 and 10,986.30 is: 16,455.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,891.20 : 25,300.35 = 10,986.30 : x
  2. Step 2: Convert to fraction form
    16,891.20/25,300.35 = 10,986.30/x
  3. Step 3: Cross multiply
    16,891.20x = 25,300.35 × 10,986.30
  4. Step 4: Simplify right side
    16,891.20x = 277,957,235.21
  5. Step 5: Solve for x
    x = 277,957,235.21/16,891.20
  6. Step 6: Final answer
    x = 16,455.74

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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.