Home / 8,164.36-12,236.81-5,685.76

Finding the Fourth Proportional to 8,164.36, 12,236.81 and 5,685.76

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Solution

The fourth proportional to 8,164.36, 12,236.81 and 5,685.76 is: 8,521.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,164.36 : 12,236.81 = 5,685.76 : x
  2. Step 2: Convert to fraction form
    8,164.36/12,236.81 = 5,685.76/x
  3. Step 3: Cross multiply
    8,164.36x = 12,236.81 × 5,685.76
  4. Step 4: Simplify right side
    8,164.36x = 69,575,503.64
  5. Step 5: Solve for x
    x = 69,575,503.64/8,164.36
  6. Step 6: Final answer
    x = 8,521.86

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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.