Home / 8,282.82-11,434.53-6,390.16

Finding the Fourth Proportional to 8,282.82, 11,434.53 and 6,390.16

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Solution

The fourth proportional to 8,282.82, 11,434.53 and 6,390.16 is: 8,821.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,282.82 : 11,434.53 = 6,390.16 : x
  2. Step 2: Convert to fraction form
    8,282.82/11,434.53 = 6,390.16/x
  3. Step 3: Cross multiply
    8,282.82x = 11,434.53 × 6,390.16
  4. Step 4: Simplify right side
    8,282.82x = 73,068,471.60
  5. Step 5: Solve for x
    x = 73,068,471.60/8,282.82
  6. Step 6: Final answer
    x = 8,821.69

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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.