Home / 13,788.93-20,685.31-4,426.75

Finding the Fourth Proportional to 13,788.93, 20,685.31 and 4,426.75

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Solution

The fourth proportional to 13,788.93, 20,685.31 and 4,426.75 is: 6,640.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.93 : 20,685.31 = 4,426.75 : x
  2. Step 2: Convert to fraction form
    13,788.93/20,685.31 = 4,426.75/x
  3. Step 3: Cross multiply
    13,788.93x = 20,685.31 × 4,426.75
  4. Step 4: Simplify right side
    13,788.93x = 91,568,710.83
  5. Step 5: Solve for x
    x = 91,568,710.83/13,788.93
  6. Step 6: Final answer
    x = 6,640.74

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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.