Home / 12,666.42-19,003.79-6,091.74

Finding the Fourth Proportional to 12,666.42, 19,003.79 and 6,091.74

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Solution

The fourth proportional to 12,666.42, 19,003.79 and 6,091.74 is: 9,139.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.42 : 19,003.79 = 6,091.74 : x
  2. Step 2: Convert to fraction form
    12,666.42/19,003.79 = 6,091.74/x
  3. Step 3: Cross multiply
    12,666.42x = 19,003.79 × 6,091.74
  4. Step 4: Simplify right side
    12,666.42x = 115,766,147.69
  5. Step 5: Solve for x
    x = 115,766,147.69/12,666.42
  6. Step 6: Final answer
    x = 9,139.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.