Home / 14,121.45-19,486.92-8,155.04

Finding the Fourth Proportional to 14,121.45, 19,486.92 and 8,155.04

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Solution

The fourth proportional to 14,121.45, 19,486.92 and 8,155.04 is: 11,253.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.45 : 19,486.92 = 8,155.04 : x
  2. Step 2: Convert to fraction form
    14,121.45/19,486.92 = 8,155.04/x
  3. Step 3: Cross multiply
    14,121.45x = 19,486.92 × 8,155.04
  4. Step 4: Simplify right side
    14,121.45x = 158,916,514.64
  5. Step 5: Solve for x
    x = 158,916,514.64/14,121.45
  6. Step 6: Final answer
    x = 11,253.56

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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.