Home / 18,652.48-27,979.26-4,612.50

Finding the Fourth Proportional to 18,652.48, 27,979.26 and 4,612.50

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Solution

The fourth proportional to 18,652.48, 27,979.26 and 4,612.50 is: 6,918.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,652.48 : 27,979.26 = 4,612.50 : x
  2. Step 2: Convert to fraction form
    18,652.48/27,979.26 = 4,612.50/x
  3. Step 3: Cross multiply
    18,652.48x = 27,979.26 × 4,612.50
  4. Step 4: Simplify right side
    18,652.48x = 129,054,336.75
  5. Step 5: Solve for x
    x = 129,054,336.75/18,652.48
  6. Step 6: Final answer
    x = 6,918.88

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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.