Home / 18,863.22-28,275.36-6,379.14

Finding the Fourth Proportional to 18,863.22, 28,275.36 and 6,379.14

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Solution

The fourth proportional to 18,863.22, 28,275.36 and 6,379.14 is: 9,562.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,863.22 : 28,275.36 = 6,379.14 : x
  2. Step 2: Convert to fraction form
    18,863.22/28,275.36 = 6,379.14/x
  3. Step 3: Cross multiply
    18,863.22x = 28,275.36 × 6,379.14
  4. Step 4: Simplify right side
    18,863.22x = 180,372,479.99
  5. Step 5: Solve for x
    x = 180,372,479.99/18,863.22
  6. Step 6: Final answer
    x = 9,562.13

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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.