Home / 14,178.33-21,270.68-4,318.38

Finding the Fourth Proportional to 14,178.33, 21,270.68 and 4,318.38

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Solution

The fourth proportional to 14,178.33, 21,270.68 and 4,318.38 is: 6,478.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,178.33 : 21,270.68 = 4,318.38 : x
  2. Step 2: Convert to fraction form
    14,178.33/21,270.68 = 4,318.38/x
  3. Step 3: Cross multiply
    14,178.33x = 21,270.68 × 4,318.38
  4. Step 4: Simplify right side
    14,178.33x = 91,854,857.51
  5. Step 5: Solve for x
    x = 91,854,857.51/14,178.33
  6. Step 6: Final answer
    x = 6,478.54

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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.