Home / 11,892.48-17,836.80-3,686.40

Finding the Fourth Proportional to 11,892.48, 17,836.80 and 3,686.40

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Solution

The fourth proportional to 11,892.48, 17,836.80 and 3,686.40 is: 5,529.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,892.48 : 17,836.80 = 3,686.40 : x
  2. Step 2: Convert to fraction form
    11,892.48/17,836.80 = 3,686.40/x
  3. Step 3: Cross multiply
    11,892.48x = 17,836.80 × 3,686.40
  4. Step 4: Simplify right side
    11,892.48x = 65,753,579.52
  5. Step 5: Solve for x
    x = 65,753,579.52/11,892.48
  6. Step 6: Final answer
    x = 5,529.00

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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.