Home / 12,777.20-19,166.44-4,012.19

Finding the Fourth Proportional to 12,777.20, 19,166.44 and 4,012.19

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Solution

The fourth proportional to 12,777.20, 19,166.44 and 4,012.19 is: 6,018.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,777.20 : 19,166.44 = 4,012.19 : x
  2. Step 2: Convert to fraction form
    12,777.20/19,166.44 = 4,012.19/x
  3. Step 3: Cross multiply
    12,777.20x = 19,166.44 × 4,012.19
  4. Step 4: Simplify right side
    12,777.20x = 76,899,398.90
  5. Step 5: Solve for x
    x = 76,899,398.90/12,777.20
  6. Step 6: Final answer
    x = 6,018.49

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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.