Home / 18,139.19-27,208.92-4,992.29

Finding the Fourth Proportional to 18,139.19, 27,208.92 and 4,992.29

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Solution

The fourth proportional to 18,139.19, 27,208.92 and 4,992.29 is: 7,488.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.19 : 27,208.92 = 4,992.29 : x
  2. Step 2: Convert to fraction form
    18,139.19/27,208.92 = 4,992.29/x
  3. Step 3: Cross multiply
    18,139.19x = 27,208.92 × 4,992.29
  4. Step 4: Simplify right side
    18,139.19x = 135,834,683.18
  5. Step 5: Solve for x
    x = 135,834,683.18/18,139.19
  6. Step 6: Final answer
    x = 7,488.46

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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.