Home / 18,251.02-27,387.39-7,720.48

Finding the Fourth Proportional to 18,251.02, 27,387.39 and 7,720.48

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Solution

The fourth proportional to 18,251.02, 27,387.39 and 7,720.48 is: 11,585.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,251.02 : 27,387.39 = 7,720.48 : x
  2. Step 2: Convert to fraction form
    18,251.02/27,387.39 = 7,720.48/x
  3. Step 3: Cross multiply
    18,251.02x = 27,387.39 × 7,720.48
  4. Step 4: Simplify right side
    18,251.02x = 211,443,796.75
  5. Step 5: Solve for x
    x = 211,443,796.75/18,251.02
  6. Step 6: Final answer
    x = 11,585.31

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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.