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Finding the Fourth Proportional to 14,480.88, 21,719.88 and 4,627.20

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Solution

The fourth proportional to 14,480.88, 21,719.88 and 4,627.20 is: 6,940.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,480.88 : 21,719.88 = 4,627.20 : x
  2. Step 2: Convert to fraction form
    14,480.88/21,719.88 = 4,627.20/x
  3. Step 3: Cross multiply
    14,480.88x = 21,719.88 × 4,627.20
  4. Step 4: Simplify right side
    14,480.88x = 100,502,228.74
  5. Step 5: Solve for x
    x = 100,502,228.74/14,480.88
  6. Step 6: Final answer
    x = 6,940.34

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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.