Home / 8,484.28-11,684.10-6,122.68

Finding the Fourth Proportional to 8,484.28, 11,684.10 and 6,122.68

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Solution

The fourth proportional to 8,484.28, 11,684.10 and 6,122.68 is: 8,431.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,484.28 : 11,684.10 = 6,122.68 : x
  2. Step 2: Convert to fraction form
    8,484.28/11,684.10 = 6,122.68/x
  3. Step 3: Cross multiply
    8,484.28x = 11,684.10 × 6,122.68
  4. Step 4: Simplify right side
    8,484.28x = 71,538,005.39
  5. Step 5: Solve for x
    x = 71,538,005.39/8,484.28
  6. Step 6: Final answer
    x = 8,431.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.