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Finding the Fourth Proportional to 11,459.66, 17,186.75 and 8,375.99

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Solution

The fourth proportional to 11,459.66, 17,186.75 and 8,375.99 is: 12,561.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,459.66 : 17,186.75 = 8,375.99 : x
  2. Step 2: Convert to fraction form
    11,459.66/17,186.75 = 8,375.99/x
  3. Step 3: Cross multiply
    11,459.66x = 17,186.75 × 8,375.99
  4. Step 4: Simplify right side
    11,459.66x = 143,955,918.32
  5. Step 5: Solve for x
    x = 143,955,918.32/11,459.66
  6. Step 6: Final answer
    x = 12,561.98

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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.