Home / 14,992.14-20,689.26-8,278.20

Finding the Fourth Proportional to 14,992.14, 20,689.26 and 8,278.20

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Solution

The fourth proportional to 14,992.14, 20,689.26 and 8,278.20 is: 11,423.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,992.14 : 20,689.26 = 8,278.20 : x
  2. Step 2: Convert to fraction form
    14,992.14/20,689.26 = 8,278.20/x
  3. Step 3: Cross multiply
    14,992.14x = 20,689.26 × 8,278.20
  4. Step 4: Simplify right side
    14,992.14x = 171,269,801.09
  5. Step 5: Solve for x
    x = 171,269,801.09/14,992.14
  6. Step 6: Final answer
    x = 11,423.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.