Home / 18,550.48-27,779.56-12,977.73

Finding the Fourth Proportional to 18,550.48, 27,779.56 and 12,977.73

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Solution

The fourth proportional to 18,550.48, 27,779.56 and 12,977.73 is: 19,434.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,550.48 : 27,779.56 = 12,977.73 : x
  2. Step 2: Convert to fraction form
    18,550.48/27,779.56 = 12,977.73/x
  3. Step 3: Cross multiply
    18,550.48x = 27,779.56 × 12,977.73
  4. Step 4: Simplify right side
    18,550.48x = 360,515,518.62
  5. Step 5: Solve for x
    x = 360,515,518.62/18,550.48
  6. Step 6: Final answer
    x = 19,434.30

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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.