Home / 12,577.44-18,864.24-4,786.20

Finding the Fourth Proportional to 12,577.44, 18,864.24 and 4,786.20

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Solution

The fourth proportional to 12,577.44, 18,864.24 and 4,786.20 is: 7,178.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.44 : 18,864.24 = 4,786.20 : x
  2. Step 2: Convert to fraction form
    12,577.44/18,864.24 = 4,786.20/x
  3. Step 3: Cross multiply
    12,577.44x = 18,864.24 × 4,786.20
  4. Step 4: Simplify right side
    12,577.44x = 90,288,025.49
  5. Step 5: Solve for x
    x = 90,288,025.49/12,577.44
  6. Step 6: Final answer
    x = 7,178.57

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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.