Home / 12,568.77-18,855.74-3,684.39

Finding the Fourth Proportional to 12,568.77, 18,855.74 and 3,684.39

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Solution

The fourth proportional to 12,568.77, 18,855.74 and 3,684.39 is: 5,527.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,568.77 : 18,855.74 = 3,684.39 : x
  2. Step 2: Convert to fraction form
    12,568.77/18,855.74 = 3,684.39/x
  3. Step 3: Cross multiply
    12,568.77x = 18,855.74 × 3,684.39
  4. Step 4: Simplify right side
    12,568.77x = 69,471,944.46
  5. Step 5: Solve for x
    x = 69,471,944.46/12,568.77
  6. Step 6: Final answer
    x = 5,527.35

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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.