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Finding the Fourth Proportional to 17,376.80, 23,980.08 and 9,418.96

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Solution

The fourth proportional to 17,376.80, 23,980.08 and 9,418.96 is: 12,998.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,376.80 : 23,980.08 = 9,418.96 : x
  2. Step 2: Convert to fraction form
    17,376.80/23,980.08 = 9,418.96/x
  3. Step 3: Cross multiply
    17,376.80x = 23,980.08 × 9,418.96
  4. Step 4: Simplify right side
    17,376.80x = 225,867,414.32
  5. Step 5: Solve for x
    x = 225,867,414.32/17,376.80
  6. Step 6: Final answer
    x = 12,998.22

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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.