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Finding the Fourth Proportional to 11,003.53, 16,507.11 and 5,457.05

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Solution

The fourth proportional to 11,003.53, 16,507.11 and 5,457.05 is: 8,186.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,003.53 : 16,507.11 = 5,457.05 : x
  2. Step 2: Convert to fraction form
    11,003.53/16,507.11 = 5,457.05/x
  3. Step 3: Cross multiply
    11,003.53x = 16,507.11 × 5,457.05
  4. Step 4: Simplify right side
    11,003.53x = 90,080,124.63
  5. Step 5: Solve for x
    x = 90,080,124.63/11,003.53
  6. Step 6: Final answer
    x = 8,186.48

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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.