Home / 18,090.69-27,132.93-5,440.25

Finding the Fourth Proportional to 18,090.69, 27,132.93 and 5,440.25

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Solution

The fourth proportional to 18,090.69, 27,132.93 and 5,440.25 is: 8,159.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090.69 : 27,132.93 = 5,440.25 : x
  2. Step 2: Convert to fraction form
    18,090.69/27,132.93 = 5,440.25/x
  3. Step 3: Cross multiply
    18,090.69x = 27,132.93 × 5,440.25
  4. Step 4: Simplify right side
    18,090.69x = 147,609,786.77
  5. Step 5: Solve for x
    x = 147,609,786.77/18,090.69
  6. Step 6: Final answer
    x = 8,159.43

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1.5x scale

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.