Home / 8,218.80-12,328.20-4,059.45

Finding the Fourth Proportional to 8,218.80, 12,328.20 and 4,059.45

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Solution

The fourth proportional to 8,218.80, 12,328.20 and 4,059.45 is: 6,089.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.80 : 12,328.20 = 4,059.45 : x
  2. Step 2: Convert to fraction form
    8,218.80/12,328.20 = 4,059.45/x
  3. Step 3: Cross multiply
    8,218.80x = 12,328.20 × 4,059.45
  4. Step 4: Simplify right side
    8,218.80x = 50,045,711.49
  5. Step 5: Solve for x
    x = 50,045,711.49/8,218.80
  6. Step 6: Final answer
    x = 6,089.18

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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.