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Finding the Fourth Proportional to 11,170.50, 15,411.51 and 6,453.06

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Solution

The fourth proportional to 11,170.50, 15,411.51 and 6,453.06 is: 8,903.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,170.50 : 15,411.51 = 6,453.06 : x
  2. Step 2: Convert to fraction form
    11,170.50/15,411.51 = 6,453.06/x
  3. Step 3: Cross multiply
    11,170.50x = 15,411.51 × 6,453.06
  4. Step 4: Simplify right side
    11,170.50x = 99,451,398.72
  5. Step 5: Solve for x
    x = 99,451,398.72/11,170.50
  6. Step 6: Final answer
    x = 8,903.04

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.