Home / 18,508.48-27,765.35-6,820.79

Finding the Fourth Proportional to 18,508.48, 27,765.35 and 6,820.79

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Solution

The fourth proportional to 18,508.48, 27,765.35 and 6,820.79 is: 10,232.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,508.48 : 27,765.35 = 6,820.79 : x
  2. Step 2: Convert to fraction form
    18,508.48/27,765.35 = 6,820.79/x
  3. Step 3: Cross multiply
    18,508.48x = 27,765.35 × 6,820.79
  4. Step 4: Simplify right side
    18,508.48x = 189,381,474.27
  5. Step 5: Solve for x
    x = 189,381,474.27/18,508.48
  6. Step 6: Final answer
    x = 10,232.15

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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.