Home / 12,131.18-16,739.84-6,825.89

Finding the Fourth Proportional to 12,131.18, 16,739.84 and 6,825.89

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Solution

The fourth proportional to 12,131.18, 16,739.84 and 6,825.89 is: 9,419.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131.18 : 16,739.84 = 6,825.89 : x
  2. Step 2: Convert to fraction form
    12,131.18/16,739.84 = 6,825.89/x
  3. Step 3: Cross multiply
    12,131.18x = 16,739.84 × 6,825.89
  4. Step 4: Simplify right side
    12,131.18x = 114,264,188.63
  5. Step 5: Solve for x
    x = 114,264,188.63/12,131.18
  6. Step 6: Final answer
    x = 9,419.05

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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.