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Finding the Fourth Proportional to 11,755.12, 17,510.51 and 11,118.50

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Solution

The fourth proportional to 11,755.12, 17,510.51 and 11,118.50 is: 16,562.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,755.12 : 17,510.51 = 11,118.50 : x
  2. Step 2: Convert to fraction form
    11,755.12/17,510.51 = 11,118.50/x
  3. Step 3: Cross multiply
    11,755.12x = 17,510.51 × 11,118.50
  4. Step 4: Simplify right side
    11,755.12x = 194,690,605.44
  5. Step 5: Solve for x
    x = 194,690,605.44/11,755.12
  6. Step 6: Final answer
    x = 16,562.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.