Home / 18,118.12-27,160.56-7,021.94

Finding the Fourth Proportional to 18,118.12, 27,160.56 and 7,021.94

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Solution

The fourth proportional to 18,118.12, 27,160.56 and 7,021.94 is: 10,526.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.12 : 27,160.56 = 7,021.94 : x
  2. Step 2: Convert to fraction form
    18,118.12/27,160.56 = 7,021.94/x
  3. Step 3: Cross multiply
    18,118.12x = 27,160.56 × 7,021.94
  4. Step 4: Simplify right side
    18,118.12x = 190,719,822.69
  5. Step 5: Solve for x
    x = 190,719,822.69/18,118.12
  6. Step 6: Final answer
    x = 10,526.47

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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.