Home / 15,517.88-21,414.90-8,444.30

Finding the Fourth Proportional to 15,517.88, 21,414.90 and 8,444.30

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Solution

The fourth proportional to 15,517.88, 21,414.90 and 8,444.30 is: 11,653.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,517.88 : 21,414.90 = 8,444.30 : x
  2. Step 2: Convert to fraction form
    15,517.88/21,414.90 = 8,444.30/x
  3. Step 3: Cross multiply
    15,517.88x = 21,414.90 × 8,444.30
  4. Step 4: Simplify right side
    15,517.88x = 180,833,840.07
  5. Step 5: Solve for x
    x = 180,833,840.07/15,517.88
  6. Step 6: Final answer
    x = 11,653.26

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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.