Home / 8,081.12-12,126.30-3,698.54

Finding the Fourth Proportional to 8,081.12, 12,126.30 and 3,698.54

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Solution

The fourth proportional to 8,081.12, 12,126.30 and 3,698.54 is: 5,549.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.12 : 12,126.30 = 3,698.54 : x
  2. Step 2: Convert to fraction form
    8,081.12/12,126.30 = 3,698.54/x
  3. Step 3: Cross multiply
    8,081.12x = 12,126.30 × 3,698.54
  4. Step 4: Simplify right side
    8,081.12x = 44,849,605.60
  5. Step 5: Solve for x
    x = 44,849,605.60/8,081.12
  6. Step 6: Final answer
    x = 5,549.92

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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.