Home / 14,782.40-20,399.87-8,067.95

Finding the Fourth Proportional to 14,782.40, 20,399.87 and 8,067.95

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Solution

The fourth proportional to 14,782.40, 20,399.87 and 8,067.95 is: 11,133.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,782.40 : 20,399.87 = 8,067.95 : x
  2. Step 2: Convert to fraction form
    14,782.40/20,399.87 = 8,067.95/x
  3. Step 3: Cross multiply
    14,782.40x = 20,399.87 × 8,067.95
  4. Step 4: Simplify right side
    14,782.40x = 164,585,090.83
  5. Step 5: Solve for x
    x = 164,585,090.83/14,782.40
  6. Step 6: Final answer
    x = 11,133.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.