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Finding the Fourth Proportional to 17,377.80, 23,981.46 and 9,419.96

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Solution

The fourth proportional to 17,377.80, 23,981.46 and 9,419.96 is: 12,999.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,377.80 : 23,981.46 = 9,419.96 : x
  2. Step 2: Convert to fraction form
    17,377.80/23,981.46 = 9,419.96/x
  3. Step 3: Cross multiply
    17,377.80x = 23,981.46 × 9,419.96
  4. Step 4: Simplify right side
    17,377.80x = 225,904,393.94
  5. Step 5: Solve for x
    x = 225,904,393.94/17,377.80
  6. Step 6: Final answer
    x = 12,999.60

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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.