Home / 14,512.20-21,719.70-12,762.60

Finding the Fourth Proportional to 14,512.20, 21,719.70 and 12,762.60

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Solution

The fourth proportional to 14,512.20, 21,719.70 and 12,762.60 is: 19,101.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,512.20 : 21,719.70 = 12,762.60 : x
  2. Step 2: Convert to fraction form
    14,512.20/21,719.70 = 12,762.60/x
  3. Step 3: Cross multiply
    14,512.20x = 21,719.70 × 12,762.60
  4. Step 4: Simplify right side
    14,512.20x = 277,199,843.22
  5. Step 5: Solve for x
    x = 277,199,843.22/14,512.20
  6. Step 6: Final answer
    x = 19,101.16

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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.