Home / 12,785.07-19,179.42-4,020.66

Finding the Fourth Proportional to 12,785.07, 19,179.42 and 4,020.66

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Solution

The fourth proportional to 12,785.07, 19,179.42 and 4,020.66 is: 6,031.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785.07 : 19,179.42 = 4,020.66 : x
  2. Step 2: Convert to fraction form
    12,785.07/19,179.42 = 4,020.66/x
  3. Step 3: Cross multiply
    12,785.07x = 19,179.42 × 4,020.66
  4. Step 4: Simplify right side
    12,785.07x = 77,113,926.82
  5. Step 5: Solve for x
    x = 77,113,926.82/12,785.07
  6. Step 6: Final answer
    x = 6,031.56

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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.