Home / 12,312.03-16,990.62-6,723.03

Finding the Fourth Proportional to 12,312.03, 16,990.62 and 6,723.03

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Solution

The fourth proportional to 12,312.03, 16,990.62 and 6,723.03 is: 9,277.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,312.03 : 16,990.62 = 6,723.03 : x
  2. Step 2: Convert to fraction form
    12,312.03/16,990.62 = 6,723.03/x
  3. Step 3: Cross multiply
    12,312.03x = 16,990.62 × 6,723.03
  4. Step 4: Simplify right side
    12,312.03x = 114,228,447.98
  5. Step 5: Solve for x
    x = 114,228,447.98/12,312.03
  6. Step 6: Final answer
    x = 9,277.79

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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.