Home / 8,145.72-12,222.90-6,069.96

Finding the Fourth Proportional to 8,145.72, 12,222.90 and 6,069.96

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Solution

The fourth proportional to 8,145.72, 12,222.90 and 6,069.96 is: 9,108.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.72 : 12,222.90 = 6,069.96 : x
  2. Step 2: Convert to fraction form
    8,145.72/12,222.90 = 6,069.96/x
  3. Step 3: Cross multiply
    8,145.72x = 12,222.90 × 6,069.96
  4. Step 4: Simplify right side
    8,145.72x = 74,192,514.08
  5. Step 5: Solve for x
    x = 74,192,514.08/8,145.72
  6. Step 6: Final answer
    x = 9,108.16

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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.