Home / 14,651.28-20,218.62-7,936.82

Finding the Fourth Proportional to 14,651.28, 20,218.62 and 7,936.82

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Solution

The fourth proportional to 14,651.28, 20,218.62 and 7,936.82 is: 10,952.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,651.28 : 20,218.62 = 7,936.82 : x
  2. Step 2: Convert to fraction form
    14,651.28/20,218.62 = 7,936.82/x
  3. Step 3: Cross multiply
    14,651.28x = 20,218.62 × 7,936.82
  4. Step 4: Simplify right side
    14,651.28x = 160,471,547.59
  5. Step 5: Solve for x
    x = 160,471,547.59/14,651.28
  6. Step 6: Final answer
    x = 10,952.73

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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.