Home / 18,154.48-27,220-12,237.36

Finding the Fourth Proportional to 18,154.48, 27,220 and 12,237.36

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Solution

The fourth proportional to 18,154.48, 27,220 and 12,237.36 is: 18,348.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,154.48 : 27,220 = 12,237.36 : x
  2. Step 2: Convert to fraction form
    18,154.48/27,220 = 12,237.36/x
  3. Step 3: Cross multiply
    18,154.48x = 27,220 × 12,237.36
  4. Step 4: Simplify right side
    18,154.48x = 333,100,939.20
  5. Step 5: Solve for x
    x = 333,100,939.20/18,154.48
  6. Step 6: Final answer
    x = 18,348.14

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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.