Home / 8,215.24-12,323.70-3,284.20

Finding the Fourth Proportional to 8,215.24, 12,323.70 and 3,284.20

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Solution

The fourth proportional to 8,215.24, 12,323.70 and 3,284.20 is: 4,926.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.24 : 12,323.70 = 3,284.20 : x
  2. Step 2: Convert to fraction form
    8,215.24/12,323.70 = 3,284.20/x
  3. Step 3: Cross multiply
    8,215.24x = 12,323.70 × 3,284.20
  4. Step 4: Simplify right side
    8,215.24x = 40,473,495.54
  5. Step 5: Solve for x
    x = 40,473,495.54/8,215.24
  6. Step 6: Final answer
    x = 4,926.64

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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.