Home / 13,120.78-19,676.38-4,798.33

Finding the Fourth Proportional to 13,120.78, 19,676.38 and 4,798.33

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Solution

The fourth proportional to 13,120.78, 19,676.38 and 4,798.33 is: 7,195.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120.78 : 19,676.38 = 4,798.33 : x
  2. Step 2: Convert to fraction form
    13,120.78/19,676.38 = 4,798.33/x
  3. Step 3: Cross multiply
    13,120.78x = 19,676.38 × 4,798.33
  4. Step 4: Simplify right side
    13,120.78x = 94,413,703.26
  5. Step 5: Solve for x
    x = 94,413,703.26/13,120.78
  6. Step 6: Final answer
    x = 7,195.74

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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.