Home / 14,968.80-20,655.54-8,680.50

Finding the Fourth Proportional to 14,968.80, 20,655.54 and 8,680.50

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Solution

The fourth proportional to 14,968.80, 20,655.54 and 8,680.50 is: 11,978.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,968.80 : 20,655.54 = 8,680.50 : x
  2. Step 2: Convert to fraction form
    14,968.80/20,655.54 = 8,680.50/x
  3. Step 3: Cross multiply
    14,968.80x = 20,655.54 × 8,680.50
  4. Step 4: Simplify right side
    14,968.80x = 179,300,414.97
  5. Step 5: Solve for x
    x = 179,300,414.97/14,968.80
  6. Step 6: Final answer
    x = 11,978.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.