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Finding the Fourth Proportional to 12,495.64, 17,244 and 7,190.35

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Solution

The fourth proportional to 12,495.64, 17,244 and 7,190.35 is: 9,922.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,495.64 : 17,244 = 7,190.35 : x
  2. Step 2: Convert to fraction form
    12,495.64/17,244 = 7,190.35/x
  3. Step 3: Cross multiply
    12,495.64x = 17,244 × 7,190.35
  4. Step 4: Simplify right side
    12,495.64x = 123,990,395.40
  5. Step 5: Solve for x
    x = 123,990,395.40/12,495.64
  6. Step 6: Final answer
    x = 9,922.69

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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.