Home / 8,215.50-12,323.25-3,287.34

Finding the Fourth Proportional to 8,215.50, 12,323.25 and 3,287.34

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Solution

The fourth proportional to 8,215.50, 12,323.25 and 3,287.34 is: 4,931.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.50 : 12,323.25 = 3,287.34 : x
  2. Step 2: Convert to fraction form
    8,215.50/12,323.25 = 3,287.34/x
  3. Step 3: Cross multiply
    8,215.50x = 12,323.25 × 3,287.34
  4. Step 4: Simplify right side
    8,215.50x = 40,510,712.66
  5. Step 5: Solve for x
    x = 40,510,712.66/8,215.50
  6. Step 6: Final answer
    x = 4,931.01

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Double scale
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Similar ratio
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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.