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Finding the Fourth Proportional to 12,858.28, 17,744.34 and 7,193.00

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Solution

The fourth proportional to 12,858.28, 17,744.34 and 7,193.00 is: 9,926.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858.28 : 17,744.34 = 7,193.00 : x
  2. Step 2: Convert to fraction form
    12,858.28/17,744.34 = 7,193.00/x
  3. Step 3: Cross multiply
    12,858.28x = 17,744.34 × 7,193.00
  4. Step 4: Simplify right side
    12,858.28x = 127,635,108.95
  5. Step 5: Solve for x
    x = 127,635,108.95/12,858.28
  6. Step 6: Final answer
    x = 9,926.30

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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.