Home / 14,636.30-20,198.16-7,921.94

Finding the Fourth Proportional to 14,636.30, 20,198.16 and 7,921.94

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Solution

The fourth proportional to 14,636.30, 20,198.16 and 7,921.94 is: 10,932.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,636.30 : 20,198.16 = 7,921.94 : x
  2. Step 2: Convert to fraction form
    14,636.30/20,198.16 = 7,921.94/x
  3. Step 3: Cross multiply
    14,636.30x = 20,198.16 × 7,921.94
  4. Step 4: Simplify right side
    14,636.30x = 160,008,510.64
  5. Step 5: Solve for x
    x = 160,008,510.64/14,636.30
  6. Step 6: Final answer
    x = 10,932.31

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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.