Home / 14,653.80-20,222.32-7,939.44

Finding the Fourth Proportional to 14,653.80, 20,222.32 and 7,939.44

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Solution

The fourth proportional to 14,653.80, 20,222.32 and 7,939.44 is: 10,956.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,653.80 : 20,222.32 = 7,939.44 : x
  2. Step 2: Convert to fraction form
    14,653.80/20,222.32 = 7,939.44/x
  3. Step 3: Cross multiply
    14,653.80x = 20,222.32 × 7,939.44
  4. Step 4: Simplify right side
    14,653.80x = 160,553,896.30
  5. Step 5: Solve for x
    x = 160,553,896.30/14,653.80
  6. Step 6: Final answer
    x = 10,956.47

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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.