Home / 12,577.48-18,874.41-4,786.36

Finding the Fourth Proportional to 12,577.48, 18,874.41 and 4,786.36

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Solution

The fourth proportional to 12,577.48, 18,874.41 and 4,786.36 is: 7,182.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.48 : 18,874.41 = 4,786.36 : x
  2. Step 2: Convert to fraction form
    12,577.48/18,874.41 = 4,786.36/x
  3. Step 3: Cross multiply
    12,577.48x = 18,874.41 × 4,786.36
  4. Step 4: Simplify right side
    12,577.48x = 90,339,721.05
  5. Step 5: Solve for x
    x = 90,339,721.05/12,577.48
  6. Step 6: Final answer
    x = 7,182.66

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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.