Home / 18,530.21-27,760.45-9,159.26

Finding the Fourth Proportional to 18,530.21, 27,760.45 and 9,159.26

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Solution

The fourth proportional to 18,530.21, 27,760.45 and 9,159.26 is: 13,721.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,530.21 : 27,760.45 = 9,159.26 : x
  2. Step 2: Convert to fraction form
    18,530.21/27,760.45 = 9,159.26/x
  3. Step 3: Cross multiply
    18,530.21x = 27,760.45 × 9,159.26
  4. Step 4: Simplify right side
    18,530.21x = 254,265,133.47
  5. Step 5: Solve for x
    x = 254,265,133.47/18,530.21
  6. Step 6: Final answer
    x = 13,721.65

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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.