Home / 12,011.12-18,016.92-6,469.04

Finding the Fourth Proportional to 12,011.12, 18,016.92 and 6,469.04

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Solution

The fourth proportional to 12,011.12, 18,016.92 and 6,469.04 is: 9,703.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011.12 : 18,016.92 = 6,469.04 : x
  2. Step 2: Convert to fraction form
    12,011.12/18,016.92 = 6,469.04/x
  3. Step 3: Cross multiply
    12,011.12x = 18,016.92 × 6,469.04
  4. Step 4: Simplify right side
    12,011.12x = 116,552,176.16
  5. Step 5: Solve for x
    x = 116,552,176.16/12,011.12
  6. Step 6: Final answer
    x = 9,703.69

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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.