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Finding the Fourth Proportional to 12,750.25, 17,597.00 and 7,161.25

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Solution

The fourth proportional to 12,750.25, 17,597.00 and 7,161.25 is: 9,883.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,750.25 : 17,597.00 = 7,161.25 : x
  2. Step 2: Convert to fraction form
    12,750.25/17,597.00 = 7,161.25/x
  3. Step 3: Cross multiply
    12,750.25x = 17,597.00 × 7,161.25
  4. Step 4: Simplify right side
    12,750.25x = 126,016,480.44
  5. Step 5: Solve for x
    x = 126,016,480.44/12,750.25
  6. Step 6: Final answer
    x = 9,883.45

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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.