Home / 14,205.12-21,305.28-3,814.56

Finding the Fourth Proportional to 14,205.12, 21,305.28 and 3,814.56

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Solution

The fourth proportional to 14,205.12, 21,305.28 and 3,814.56 is: 5,721.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,205.12 : 21,305.28 = 3,814.56 : x
  2. Step 2: Convert to fraction form
    14,205.12/21,305.28 = 3,814.56/x
  3. Step 3: Cross multiply
    14,205.12x = 21,305.28 × 3,814.56
  4. Step 4: Simplify right side
    14,205.12x = 81,270,268.88
  5. Step 5: Solve for x
    x = 81,270,268.88/14,205.12
  6. Step 6: Final answer
    x = 5,721.20

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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.