Home / 8,218.59-11,329.69-6,540.72

Finding the Fourth Proportional to 8,218.59, 11,329.69 and 6,540.72

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Solution

The fourth proportional to 8,218.59, 11,329.69 and 6,540.72 is: 9,016.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.59 : 11,329.69 = 6,540.72 : x
  2. Step 2: Convert to fraction form
    8,218.59/11,329.69 = 6,540.72/x
  3. Step 3: Cross multiply
    8,218.59x = 11,329.69 × 6,540.72
  4. Step 4: Simplify right side
    8,218.59x = 74,104,329.98
  5. Step 5: Solve for x
    x = 74,104,329.98/8,218.59
  6. Step 6: Final answer
    x = 9,016.67

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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.