Home / 12,270.58-16,933.81-6,681.78

Finding the Fourth Proportional to 12,270.58, 16,933.81 and 6,681.78

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Solution

The fourth proportional to 12,270.58, 16,933.81 and 6,681.78 is: 9,221.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,270.58 : 16,933.81 = 6,681.78 : x
  2. Step 2: Convert to fraction form
    12,270.58/16,933.81 = 6,681.78/x
  3. Step 3: Cross multiply
    12,270.58x = 16,933.81 × 6,681.78
  4. Step 4: Simplify right side
    12,270.58x = 113,147,992.98
  5. Step 5: Solve for x
    x = 113,147,992.98/12,270.58
  6. Step 6: Final answer
    x = 9,221.08

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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.