Home / 8,872.39-13,313.09-5,912.86

Finding the Fourth Proportional to 8,872.39, 13,313.09 and 5,912.86

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Solution

The fourth proportional to 8,872.39, 13,313.09 and 5,912.86 is: 8,872.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,872.39 : 13,313.09 = 5,912.86 : x
  2. Step 2: Convert to fraction form
    8,872.39/13,313.09 = 5,912.86/x
  3. Step 3: Cross multiply
    8,872.39x = 13,313.09 × 5,912.86
  4. Step 4: Simplify right side
    8,872.39x = 78,718,437.34
  5. Step 5: Solve for x
    x = 78,718,437.34/8,872.39
  6. Step 6: Final answer
    x = 8,872.29

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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.