Home / 14,512.78-21,764.60-5,627.49

Finding the Fourth Proportional to 14,512.78, 21,764.60 and 5,627.49

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Solution

The fourth proportional to 14,512.78, 21,764.60 and 5,627.49 is: 8,439.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,512.78 : 21,764.60 = 5,627.49 : x
  2. Step 2: Convert to fraction form
    14,512.78/21,764.60 = 5,627.49/x
  3. Step 3: Cross multiply
    14,512.78x = 21,764.60 × 5,627.49
  4. Step 4: Simplify right side
    14,512.78x = 122,480,068.85
  5. Step 5: Solve for x
    x = 122,480,068.85/14,512.78
  6. Step 6: Final answer
    x = 8,439.46

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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.