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Finding the Fourth Proportional to 17,375.56, 23,978.40 and 9,417.84

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Solution

The fourth proportional to 17,375.56, 23,978.40 and 9,417.84 is: 12,996.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,375.56 : 23,978.40 = 9,417.84 : x
  2. Step 2: Convert to fraction form
    17,375.56/23,978.40 = 9,417.84/x
  3. Step 3: Cross multiply
    17,375.56x = 23,978.40 × 9,417.84
  4. Step 4: Simplify right side
    17,375.56x = 225,824,891.20
  5. Step 5: Solve for x
    x = 225,824,891.20/17,375.56
  6. Step 6: Final answer
    x = 12,996.69

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1.5x scale

Why These Related Problems?

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