Home / 12,785.24-19,180.92-4,020.16

Finding the Fourth Proportional to 12,785.24, 19,180.92 and 4,020.16

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Solution

The fourth proportional to 12,785.24, 19,180.92 and 4,020.16 is: 6,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785.24 : 19,180.92 = 4,020.16 : x
  2. Step 2: Convert to fraction form
    12,785.24/19,180.92 = 4,020.16/x
  3. Step 3: Cross multiply
    12,785.24x = 19,180.92 × 4,020.16
  4. Step 4: Simplify right side
    12,785.24x = 77,110,367.35
  5. Step 5: Solve for x
    x = 77,110,367.35/12,785.24
  6. Step 6: Final answer
    x = 6,031.20

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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.