Home / 18,100.03-27,133.34-12,555.99

Finding the Fourth Proportional to 18,100.03, 27,133.34 and 12,555.99

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Solution

The fourth proportional to 18,100.03, 27,133.34 and 12,555.99 is: 18,822.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,100.03 : 27,133.34 = 12,555.99 : x
  2. Step 2: Convert to fraction form
    18,100.03/27,133.34 = 12,555.99/x
  3. Step 3: Cross multiply
    18,100.03x = 27,133.34 × 12,555.99
  4. Step 4: Simplify right side
    18,100.03x = 340,685,945.71
  5. Step 5: Solve for x
    x = 340,685,945.71/18,100.03
  6. Step 6: Final answer
    x = 18,822.40

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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.