Home / 12,753.55-19,130.29-3,393.56

Finding the Fourth Proportional to 12,753.55, 19,130.29 and 3,393.56

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Solution

The fourth proportional to 12,753.55, 19,130.29 and 3,393.56 is: 5,090.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,753.55 : 19,130.29 = 3,393.56 : x
  2. Step 2: Convert to fraction form
    12,753.55/19,130.29 = 3,393.56/x
  3. Step 3: Cross multiply
    12,753.55x = 19,130.29 × 3,393.56
  4. Step 4: Simplify right side
    12,753.55x = 64,919,839.00
  5. Step 5: Solve for x
    x = 64,919,839.00/12,753.55
  6. Step 6: Final answer
    x = 5,090.34

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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.