Home / 13,198.78-19,800.36-4,878.82

Finding the Fourth Proportional to 13,198.78, 19,800.36 and 4,878.82

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Solution

The fourth proportional to 13,198.78, 19,800.36 and 4,878.82 is: 7,319.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,198.78 : 19,800.36 = 4,878.82 : x
  2. Step 2: Convert to fraction form
    13,198.78/19,800.36 = 4,878.82/x
  3. Step 3: Cross multiply
    13,198.78x = 19,800.36 × 4,878.82
  4. Step 4: Simplify right side
    13,198.78x = 96,602,392.38
  5. Step 5: Solve for x
    x = 96,602,392.38/13,198.78
  6. Step 6: Final answer
    x = 7,319.04

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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.