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Finding the Fourth Proportional to 11,953.85, 17,933.20 and 9,876.20

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Solution

The fourth proportional to 11,953.85, 17,933.20 and 9,876.20 is: 14,816.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,953.85 : 17,933.20 = 9,876.20 : x
  2. Step 2: Convert to fraction form
    11,953.85/17,933.20 = 9,876.20/x
  3. Step 3: Cross multiply
    11,953.85x = 17,933.20 × 9,876.20
  4. Step 4: Simplify right side
    11,953.85x = 177,111,755.48
  5. Step 5: Solve for x
    x = 177,111,755.48/11,953.85
  6. Step 6: Final answer
    x = 14,816.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.