Home / 8,205.18-11,322.09-4,619.69

Finding the Fourth Proportional to 8,205.18, 11,322.09 and 4,619.69

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Solution

The fourth proportional to 8,205.18, 11,322.09 and 4,619.69 is: 6,374.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,205.18 : 11,322.09 = 4,619.69 : x
  2. Step 2: Convert to fraction form
    8,205.18/11,322.09 = 4,619.69/x
  3. Step 3: Cross multiply
    8,205.18x = 11,322.09 × 4,619.69
  4. Step 4: Simplify right side
    8,205.18x = 52,304,489.34
  5. Step 5: Solve for x
    x = 52,304,489.34/8,205.18
  6. Step 6: Final answer
    x = 6,374.57

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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.