Home / 12,172.90-16,797.08-7,135.96

Finding the Fourth Proportional to 12,172.90, 16,797.08 and 7,135.96

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Solution

The fourth proportional to 12,172.90, 16,797.08 and 7,135.96 is: 9,846.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172.90 : 16,797.08 = 7,135.96 : x
  2. Step 2: Convert to fraction form
    12,172.90/16,797.08 = 7,135.96/x
  3. Step 3: Cross multiply
    12,172.90x = 16,797.08 × 7,135.96
  4. Step 4: Simplify right side
    12,172.90x = 119,863,291.00
  5. Step 5: Solve for x
    x = 119,863,291.00/12,172.90
  6. Step 6: Final answer
    x = 9,846.73

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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.