Home / 12,785.68-19,177.26-4,020.36

Finding the Fourth Proportional to 12,785.68, 19,177.26 and 4,020.36

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Solution

The fourth proportional to 12,785.68, 19,177.26 and 4,020.36 is: 6,030.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785.68 : 19,177.26 = 4,020.36 : x
  2. Step 2: Convert to fraction form
    12,785.68/19,177.26 = 4,020.36/x
  3. Step 3: Cross multiply
    12,785.68x = 19,177.26 × 4,020.36
  4. Step 4: Simplify right side
    12,785.68x = 77,099,489.01
  5. Step 5: Solve for x
    x = 77,099,489.01/12,785.68
  6. Step 6: Final answer
    x = 6,030.14

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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.