Home / 14,197.39-21,268.78-7,938.41

Finding the Fourth Proportional to 14,197.39, 21,268.78 and 7,938.41

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Solution

The fourth proportional to 14,197.39, 21,268.78 and 7,938.41 is: 11,892.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,197.39 : 21,268.78 = 7,938.41 : x
  2. Step 2: Convert to fraction form
    14,197.39/21,268.78 = 7,938.41/x
  3. Step 3: Cross multiply
    14,197.39x = 21,268.78 × 7,938.41
  4. Step 4: Simplify right side
    14,197.39x = 168,840,169.65
  5. Step 5: Solve for x
    x = 168,840,169.65/14,197.39
  6. Step 6: Final answer
    x = 11,892.34

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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.