Home / 12,785.26-19,180.92-4,020.18

Finding the Fourth Proportional to 12,785.26, 19,180.92 and 4,020.18

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Solution

The fourth proportional to 12,785.26, 19,180.92 and 4,020.18 is: 6,031.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785.26 : 19,180.92 = 4,020.18 : x
  2. Step 2: Convert to fraction form
    12,785.26/19,180.92 = 4,020.18/x
  3. Step 3: Cross multiply
    12,785.26x = 19,180.92 × 4,020.18
  4. Step 4: Simplify right side
    12,785.26x = 77,110,750.97
  5. Step 5: Solve for x
    x = 77,110,750.97/12,785.26
  6. Step 6: Final answer
    x = 6,031.22

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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.