Home / 15,517.96-21,414.74-8,804.90

Finding the Fourth Proportional to 15,517.96, 21,414.74 and 8,804.90

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Solution

The fourth proportional to 15,517.96, 21,414.74 and 8,804.90 is: 12,150.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,517.96 : 21,414.74 = 8,804.90 : x
  2. Step 2: Convert to fraction form
    15,517.96/21,414.74 = 8,804.90/x
  3. Step 3: Cross multiply
    15,517.96x = 21,414.74 × 8,804.90
  4. Step 4: Simplify right side
    15,517.96x = 188,554,644.23
  5. Step 5: Solve for x
    x = 188,554,644.23/15,517.96
  6. Step 6: Final answer
    x = 12,150.74

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1.5x scale

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.