Home / 12,768.12-19,170.12-6,532.61

Finding the Fourth Proportional to 12,768.12, 19,170.12 and 6,532.61

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Solution

The fourth proportional to 12,768.12, 19,170.12 and 6,532.61 is: 9,808.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768.12 : 19,170.12 = 6,532.61 : x
  2. Step 2: Convert to fraction form
    12,768.12/19,170.12 = 6,532.61/x
  3. Step 3: Cross multiply
    12,768.12x = 19,170.12 × 6,532.61
  4. Step 4: Simplify right side
    12,768.12x = 125,230,917.61
  5. Step 5: Solve for x
    x = 125,230,917.61/12,768.12
  6. Step 6: Final answer
    x = 9,808.09

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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.