Home / 12,762.22-19,137.84-4,969.21

Finding the Fourth Proportional to 12,762.22, 19,137.84 and 4,969.21

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Solution

The fourth proportional to 12,762.22, 19,137.84 and 4,969.21 is: 7,451.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,762.22 : 19,137.84 = 4,969.21 : x
  2. Step 2: Convert to fraction form
    12,762.22/19,137.84 = 4,969.21/x
  3. Step 3: Cross multiply
    12,762.22x = 19,137.84 × 4,969.21
  4. Step 4: Simplify right side
    12,762.22x = 95,099,945.91
  5. Step 5: Solve for x
    x = 95,099,945.91/12,762.22
  6. Step 6: Final answer
    x = 7,451.68

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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.