Home / 15,205.91-22,808.87-12,147.35

Finding the Fourth Proportional to 15,205.91, 22,808.87 and 12,147.35

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Solution

The fourth proportional to 15,205.91, 22,808.87 and 12,147.35 is: 18,221.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,205.91 : 22,808.87 = 12,147.35 : x
  2. Step 2: Convert to fraction form
    15,205.91/22,808.87 = 12,147.35/x
  3. Step 3: Cross multiply
    15,205.91x = 22,808.87 × 12,147.35
  4. Step 4: Simplify right side
    15,205.91x = 277,067,326.99
  5. Step 5: Solve for x
    x = 277,067,326.99/15,205.91
  6. Step 6: Final answer
    x = 18,221.03

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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.