Home / 14,117.58-21,171.92-7,540.38

Finding the Fourth Proportional to 14,117.58, 21,171.92 and 7,540.38

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Solution

The fourth proportional to 14,117.58, 21,171.92 and 7,540.38 is: 11,308.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,117.58 : 21,171.92 = 7,540.38 : x
  2. Step 2: Convert to fraction form
    14,117.58/21,171.92 = 7,540.38/x
  3. Step 3: Cross multiply
    14,117.58x = 21,171.92 × 7,540.38
  4. Step 4: Simplify right side
    14,117.58x = 159,644,284.43
  5. Step 5: Solve for x
    x = 159,644,284.43/14,117.58
  6. Step 6: Final answer
    x = 11,308.19

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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.