Home / 12,568.66-18,855.41-4,776.86

Finding the Fourth Proportional to 12,568.66, 18,855.41 and 4,776.86

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Solution

The fourth proportional to 12,568.66, 18,855.41 and 4,776.86 is: 7,166.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,568.66 : 18,855.41 = 4,776.86 : x
  2. Step 2: Convert to fraction form
    12,568.66/18,855.41 = 4,776.86/x
  3. Step 3: Cross multiply
    12,568.66x = 18,855.41 × 4,776.86
  4. Step 4: Simplify right side
    12,568.66x = 90,069,659.78
  5. Step 5: Solve for x
    x = 90,069,659.78/12,568.66
  6. Step 6: Final answer
    x = 7,166.21

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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.