Home / 18,538.67-27,812.57-5,391.16

Finding the Fourth Proportional to 18,538.67, 27,812.57 and 5,391.16

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Solution

The fourth proportional to 18,538.67, 27,812.57 and 5,391.16 is: 8,088.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.67 : 27,812.57 = 5,391.16 : x
  2. Step 2: Convert to fraction form
    18,538.67/27,812.57 = 5,391.16/x
  3. Step 3: Cross multiply
    18,538.67x = 27,812.57 × 5,391.16
  4. Step 4: Simplify right side
    18,538.67x = 149,941,918.39
  5. Step 5: Solve for x
    x = 149,941,918.39/18,538.67
  6. Step 6: Final answer
    x = 8,088.06

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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.