Home / 8,218.07-12,331.25-3,289.13

Finding the Fourth Proportional to 8,218.07, 12,331.25 and 3,289.13

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Solution

The fourth proportional to 8,218.07, 12,331.25 and 3,289.13 is: 4,935.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.07 : 12,331.25 = 3,289.13 : x
  2. Step 2: Convert to fraction form
    8,218.07/12,331.25 = 3,289.13/x
  3. Step 3: Cross multiply
    8,218.07x = 12,331.25 × 3,289.13
  4. Step 4: Simplify right side
    8,218.07x = 40,559,006.21
  5. Step 5: Solve for x
    x = 40,559,006.21/8,218.07
  6. Step 6: Final answer
    x = 4,935.35

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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.