Home / 12,565.08-18,850.50-5,450.49

Finding the Fourth Proportional to 12,565.08, 18,850.50 and 5,450.49

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Solution

The fourth proportional to 12,565.08, 18,850.50 and 5,450.49 is: 8,176.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,565.08 : 18,850.50 = 5,450.49 : x
  2. Step 2: Convert to fraction form
    12,565.08/18,850.50 = 5,450.49/x
  3. Step 3: Cross multiply
    12,565.08x = 18,850.50 × 5,450.49
  4. Step 4: Simplify right side
    12,565.08x = 102,744,461.75
  5. Step 5: Solve for x
    x = 102,744,461.75/12,565.08
  6. Step 6: Final answer
    x = 8,176.98

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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.