Home / 8,729.30-13,086.60-3,538.82

Finding the Fourth Proportional to 8,729.30, 13,086.60 and 3,538.82

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Solution

The fourth proportional to 8,729.30, 13,086.60 and 3,538.82 is: 5,305.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.30 : 13,086.60 = 3,538.82 : x
  2. Step 2: Convert to fraction form
    8,729.30/13,086.60 = 3,538.82/x
  3. Step 3: Cross multiply
    8,729.30x = 13,086.60 × 3,538.82
  4. Step 4: Simplify right side
    8,729.30x = 46,311,121.81
  5. Step 5: Solve for x
    x = 46,311,121.81/8,729.30
  6. Step 6: Final answer
    x = 5,305.25

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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.