Home / 13,739.12-20,610.12-4,505.12

Finding the Fourth Proportional to 13,739.12, 20,610.12 and 4,505.12

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Solution

The fourth proportional to 13,739.12, 20,610.12 and 4,505.12 is: 6,758.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739.12 : 20,610.12 = 4,505.12 : x
  2. Step 2: Convert to fraction form
    13,739.12/20,610.12 = 4,505.12/x
  3. Step 3: Cross multiply
    13,739.12x = 20,610.12 × 4,505.12
  4. Step 4: Simplify right side
    13,739.12x = 92,851,063.81
  5. Step 5: Solve for x
    x = 92,851,063.81/13,739.12
  6. Step 6: Final answer
    x = 6,758.15

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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.