Home / 18,538.11-27,810.81-6,851.43

Finding the Fourth Proportional to 18,538.11, 27,810.81 and 6,851.43

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Solution

The fourth proportional to 18,538.11, 27,810.81 and 6,851.43 is: 10,278.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.11 : 27,810.81 = 6,851.43 : x
  2. Step 2: Convert to fraction form
    18,538.11/27,810.81 = 6,851.43/x
  3. Step 3: Cross multiply
    18,538.11x = 27,810.81 × 6,851.43
  4. Step 4: Simplify right side
    18,538.11x = 190,543,817.96
  5. Step 5: Solve for x
    x = 190,543,817.96/18,538.11
  6. Step 6: Final answer
    x = 10,278.49

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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.