Home / 18,188.64-27,306.36-11,643.84

Finding the Fourth Proportional to 18,188.64, 27,306.36 and 11,643.84

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Solution

The fourth proportional to 18,188.64, 27,306.36 and 11,643.84 is: 17,480.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,188.64 : 27,306.36 = 11,643.84 : x
  2. Step 2: Convert to fraction form
    18,188.64/27,306.36 = 11,643.84/x
  3. Step 3: Cross multiply
    18,188.64x = 27,306.36 × 11,643.84
  4. Step 4: Simplify right side
    18,188.64x = 317,950,886.82
  5. Step 5: Solve for x
    x = 317,950,886.82/18,188.64
  6. Step 6: Final answer
    x = 17,480.74

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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.