Home / 8,280.38-12,412.26-4,113.98

Finding the Fourth Proportional to 8,280.38, 12,412.26 and 4,113.98

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Solution

The fourth proportional to 8,280.38, 12,412.26 and 4,113.98 is: 6,166.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,280.38 : 12,412.26 = 4,113.98 : x
  2. Step 2: Convert to fraction form
    8,280.38/12,412.26 = 4,113.98/x
  3. Step 3: Cross multiply
    8,280.38x = 12,412.26 × 4,113.98
  4. Step 4: Simplify right side
    8,280.38x = 51,063,789.39
  5. Step 5: Solve for x
    x = 51,063,789.39/8,280.38
  6. Step 6: Final answer
    x = 6,166.84

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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.