Home / 12,933.90-17,850.86-12,089.68

Finding the Fourth Proportional to 12,933.90, 17,850.86 and 12,089.68

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Solution

The fourth proportional to 12,933.90, 17,850.86 and 12,089.68 is: 16,685.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,933.90 : 17,850.86 = 12,089.68 : x
  2. Step 2: Convert to fraction form
    12,933.90/17,850.86 = 12,089.68/x
  3. Step 3: Cross multiply
    12,933.90x = 17,850.86 × 12,089.68
  4. Step 4: Simplify right side
    12,933.90x = 215,811,185.12
  5. Step 5: Solve for x
    x = 215,811,185.12/12,933.90
  6. Step 6: Final answer
    x = 16,685.70

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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.