Home / 13,953.04-20,919.44-6,553.72

Finding the Fourth Proportional to 13,953.04, 20,919.44 and 6,553.72

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Solution

The fourth proportional to 13,953.04, 20,919.44 and 6,553.72 is: 9,825.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.04 : 20,919.44 = 6,553.72 : x
  2. Step 2: Convert to fraction form
    13,953.04/20,919.44 = 6,553.72/x
  3. Step 3: Cross multiply
    13,953.04x = 20,919.44 × 6,553.72
  4. Step 4: Simplify right side
    13,953.04x = 137,100,152.32
  5. Step 5: Solve for x
    x = 137,100,152.32/13,953.04
  6. Step 6: Final answer
    x = 9,825.83

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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.