Home / 18,108.02-27,147.72-11,769.50

Finding the Fourth Proportional to 18,108.02, 27,147.72 and 11,769.50

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Solution

The fourth proportional to 18,108.02, 27,147.72 and 11,769.50 is: 17,644.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,108.02 : 27,147.72 = 11,769.50 : x
  2. Step 2: Convert to fraction form
    18,108.02/27,147.72 = 11,769.50/x
  3. Step 3: Cross multiply
    18,108.02x = 27,147.72 × 11,769.50
  4. Step 4: Simplify right side
    18,108.02x = 319,515,090.54
  5. Step 5: Solve for x
    x = 319,515,090.54/18,108.02
  6. Step 6: Final answer
    x = 17,644.95

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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.