Home / 18,132.35-27,201.27-6,442.79

Finding the Fourth Proportional to 18,132.35, 27,201.27 and 6,442.79

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Solution

The fourth proportional to 18,132.35, 27,201.27 and 6,442.79 is: 9,665.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,132.35 : 27,201.27 = 6,442.79 : x
  2. Step 2: Convert to fraction form
    18,132.35/27,201.27 = 6,442.79/x
  3. Step 3: Cross multiply
    18,132.35x = 27,201.27 × 6,442.79
  4. Step 4: Simplify right side
    18,132.35x = 175,252,070.34
  5. Step 5: Solve for x
    x = 175,252,070.34/18,132.35
  6. Step 6: Final answer
    x = 9,665.16

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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.