Home / 18,874.08-28,309.38-6,392.67

Finding the Fourth Proportional to 18,874.08, 28,309.38 and 6,392.67

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Solution

The fourth proportional to 18,874.08, 28,309.38 and 6,392.67 is: 9,588.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,874.08 : 28,309.38 = 6,392.67 : x
  2. Step 2: Convert to fraction form
    18,874.08/28,309.38 = 6,392.67/x
  3. Step 3: Cross multiply
    18,874.08x = 28,309.38 × 6,392.67
  4. Step 4: Simplify right side
    18,874.08x = 180,972,524.24
  5. Step 5: Solve for x
    x = 180,972,524.24/18,874.08
  6. Step 6: Final answer
    x = 9,588.42

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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.