Home / 18,142.92-27,218.75-7,607.16

Finding the Fourth Proportional to 18,142.92, 27,218.75 and 7,607.16

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Solution

The fourth proportional to 18,142.92, 27,218.75 and 7,607.16 is: 11,412.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,142.92 : 27,218.75 = 7,607.16 : x
  2. Step 2: Convert to fraction form
    18,142.92/27,218.75 = 7,607.16/x
  3. Step 3: Cross multiply
    18,142.92x = 27,218.75 × 7,607.16
  4. Step 4: Simplify right side
    18,142.92x = 207,057,348.21
  5. Step 5: Solve for x
    x = 207,057,348.21/18,142.92
  6. Step 6: Final answer
    x = 11,412.57

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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.