Home / 15,548.45-21,456.90-8,834.09

Finding the Fourth Proportional to 15,548.45, 21,456.90 and 8,834.09

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Solution

The fourth proportional to 15,548.45, 21,456.90 and 8,834.09 is: 12,191.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,548.45 : 21,456.90 = 8,834.09 : x
  2. Step 2: Convert to fraction form
    15,548.45/21,456.90 = 8,834.09/x
  3. Step 3: Cross multiply
    15,548.45x = 21,456.90 × 8,834.09
  4. Step 4: Simplify right side
    15,548.45x = 189,552,078.44
  5. Step 5: Solve for x
    x = 189,552,078.44/15,548.45
  6. Step 6: Final answer
    x = 12,191.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.