Home / 12,777.58-19,164.33-6,542.20

Finding the Fourth Proportional to 12,777.58, 19,164.33 and 6,542.20

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Solution

The fourth proportional to 12,777.58, 19,164.33 and 6,542.20 is: 9,812.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,777.58 : 19,164.33 = 6,542.20 : x
  2. Step 2: Convert to fraction form
    12,777.58/19,164.33 = 6,542.20/x
  3. Step 3: Cross multiply
    12,777.58x = 19,164.33 × 6,542.20
  4. Step 4: Simplify right side
    12,777.58x = 125,376,879.73
  5. Step 5: Solve for x
    x = 125,376,879.73/12,777.58
  6. Step 6: Final answer
    x = 9,812.26

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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.