Home / 14,079.36-21,122.94-5,765.34

Finding the Fourth Proportional to 14,079.36, 21,122.94 and 5,765.34

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Solution

The fourth proportional to 14,079.36, 21,122.94 and 5,765.34 is: 8,649.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,079.36 : 21,122.94 = 5,765.34 : x
  2. Step 2: Convert to fraction form
    14,079.36/21,122.94 = 5,765.34/x
  3. Step 3: Cross multiply
    14,079.36x = 21,122.94 × 5,765.34
  4. Step 4: Simplify right side
    14,079.36x = 121,780,930.90
  5. Step 5: Solve for x
    x = 121,780,930.90/14,079.36
  6. Step 6: Final answer
    x = 8,649.61

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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.