Home / 13,771.94-20,649.74-5,442.30

Finding the Fourth Proportional to 13,771.94, 20,649.74 and 5,442.30

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Solution

The fourth proportional to 13,771.94, 20,649.74 and 5,442.30 is: 8,160.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,771.94 : 20,649.74 = 5,442.30 : x
  2. Step 2: Convert to fraction form
    13,771.94/20,649.74 = 5,442.30/x
  3. Step 3: Cross multiply
    13,771.94x = 20,649.74 × 5,442.30
  4. Step 4: Simplify right side
    13,771.94x = 112,382,052.79
  5. Step 5: Solve for x
    x = 112,382,052.79/13,771.94
  6. Step 6: Final answer
    x = 8,160.22

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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.