Home / 18,139.82-27,210.06-4,992.10

Finding the Fourth Proportional to 18,139.82, 27,210.06 and 4,992.10

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Solution

The fourth proportional to 18,139.82, 27,210.06 and 4,992.10 is: 7,488.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.82 : 27,210.06 = 4,992.10 : x
  2. Step 2: Convert to fraction form
    18,139.82/27,210.06 = 4,992.10/x
  3. Step 3: Cross multiply
    18,139.82x = 27,210.06 × 4,992.10
  4. Step 4: Simplify right side
    18,139.82x = 135,835,272.50
  5. Step 5: Solve for x
    x = 135,835,272.50/18,139.82
  6. Step 6: Final answer
    x = 7,488.24

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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.