Home / 13,535.12-20,305.96-5,216.18

Finding the Fourth Proportional to 13,535.12, 20,305.96 and 5,216.18

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Solution

The fourth proportional to 13,535.12, 20,305.96 and 5,216.18 is: 7,825.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,535.12 : 20,305.96 = 5,216.18 : x
  2. Step 2: Convert to fraction form
    13,535.12/20,305.96 = 5,216.18/x
  3. Step 3: Cross multiply
    13,535.12x = 20,305.96 × 5,216.18
  4. Step 4: Simplify right side
    13,535.12x = 105,919,542.43
  5. Step 5: Solve for x
    x = 105,919,542.43/13,535.12
  6. Step 6: Final answer
    x = 7,825.53

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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.