Home / 12,757.78-19,140.30-4,968.82

Finding the Fourth Proportional to 12,757.78, 19,140.30 and 4,968.82

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Solution

The fourth proportional to 12,757.78, 19,140.30 and 4,968.82 is: 7,454.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,757.78 : 19,140.30 = 4,968.82 : x
  2. Step 2: Convert to fraction form
    12,757.78/19,140.30 = 4,968.82/x
  3. Step 3: Cross multiply
    12,757.78x = 19,140.30 × 4,968.82
  4. Step 4: Simplify right side
    12,757.78x = 95,104,705.45
  5. Step 5: Solve for x
    x = 95,104,705.45/12,757.78
  6. Step 6: Final answer
    x = 7,454.64

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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.