Home / 8,393.12-12,589.80-4,238.36

Finding the Fourth Proportional to 8,393.12, 12,589.80 and 4,238.36

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Solution

The fourth proportional to 8,393.12, 12,589.80 and 4,238.36 is: 6,357.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,393.12 : 12,589.80 = 4,238.36 : x
  2. Step 2: Convert to fraction form
    8,393.12/12,589.80 = 4,238.36/x
  3. Step 3: Cross multiply
    8,393.12x = 12,589.80 × 4,238.36
  4. Step 4: Simplify right side
    8,393.12x = 53,360,104.73
  5. Step 5: Solve for x
    x = 53,360,104.73/8,393.12
  6. Step 6: Final answer
    x = 6,357.60

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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.