Home / 14,125.80-21,198.30-7,885.80

Finding the Fourth Proportional to 14,125.80, 21,198.30 and 7,885.80

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Solution

The fourth proportional to 14,125.80, 21,198.30 and 7,885.80 is: 11,834.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,125.80 : 21,198.30 = 7,885.80 : x
  2. Step 2: Convert to fraction form
    14,125.80/21,198.30 = 7,885.80/x
  3. Step 3: Cross multiply
    14,125.80x = 21,198.30 × 7,885.80
  4. Step 4: Simplify right side
    14,125.80x = 167,165,554.14
  5. Step 5: Solve for x
    x = 167,165,554.14/14,125.80
  6. Step 6: Final answer
    x = 11,834.06

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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.