Home / 13,953.27-20,919.87-6,553.62

Finding the Fourth Proportional to 13,953.27, 20,919.87 and 6,553.62

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Solution

The fourth proportional to 13,953.27, 20,919.87 and 6,553.62 is: 9,825.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.27 : 20,919.87 = 6,553.62 : x
  2. Step 2: Convert to fraction form
    13,953.27/20,919.87 = 6,553.62/x
  3. Step 3: Cross multiply
    13,953.27x = 20,919.87 × 6,553.62
  4. Step 4: Simplify right side
    13,953.27x = 137,100,878.43
  5. Step 5: Solve for x
    x = 137,100,878.43/13,953.27
  6. Step 6: Final answer
    x = 9,825.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.