Home / 12,572.32-18,847.68-4,786.72

Finding the Fourth Proportional to 12,572.32, 18,847.68 and 4,786.72

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Solution

The fourth proportional to 12,572.32, 18,847.68 and 4,786.72 is: 7,175.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,572.32 : 18,847.68 = 4,786.72 : x
  2. Step 2: Convert to fraction form
    12,572.32/18,847.68 = 4,786.72/x
  3. Step 3: Cross multiply
    12,572.32x = 18,847.68 × 4,786.72
  4. Step 4: Simplify right side
    12,572.32x = 90,218,566.81
  5. Step 5: Solve for x
    x = 90,218,566.81/12,572.32
  6. Step 6: Final answer
    x = 7,175.97

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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.