Home / 14,318.82-21,480.81-4,455.78

Finding the Fourth Proportional to 14,318.82, 21,480.81 and 4,455.78

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Solution

The fourth proportional to 14,318.82, 21,480.81 and 4,455.78 is: 6,684.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,318.82 : 21,480.81 = 4,455.78 : x
  2. Step 2: Convert to fraction form
    14,318.82/21,480.81 = 4,455.78/x
  3. Step 3: Cross multiply
    14,318.82x = 21,480.81 × 4,455.78
  4. Step 4: Simplify right side
    14,318.82x = 95,713,763.58
  5. Step 5: Solve for x
    x = 95,713,763.58/14,318.82
  6. Step 6: Final answer
    x = 6,684.47

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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.