Home / 15,517.34-21,414.34-8,444.20

Finding the Fourth Proportional to 15,517.34, 21,414.34 and 8,444.20

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Solution

The fourth proportional to 15,517.34, 21,414.34 and 8,444.20 is: 11,653.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,517.34 : 21,414.34 = 8,444.20 : x
  2. Step 2: Convert to fraction form
    15,517.34/21,414.34 = 8,444.20/x
  3. Step 3: Cross multiply
    15,517.34x = 21,414.34 × 8,444.20
  4. Step 4: Simplify right side
    15,517.34x = 180,826,969.83
  5. Step 5: Solve for x
    x = 180,826,969.83/15,517.34
  6. Step 6: Final answer
    x = 11,653.22

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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.