Home / 18,461.36-27,663.69-12,530.54

Finding the Fourth Proportional to 18,461.36, 27,663.69 and 12,530.54

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Solution

The fourth proportional to 18,461.36, 27,663.69 and 12,530.54 is: 18,776.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,461.36 : 27,663.69 = 12,530.54 : x
  2. Step 2: Convert to fraction form
    18,461.36/27,663.69 = 12,530.54/x
  3. Step 3: Cross multiply
    18,461.36x = 27,663.69 × 12,530.54
  4. Step 4: Simplify right side
    18,461.36x = 346,640,974.09
  5. Step 5: Solve for x
    x = 346,640,974.09/18,461.36
  6. Step 6: Final answer
    x = 18,776.57

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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.