Home / 12,917.54-19,358.09-5,519.41

Finding the Fourth Proportional to 12,917.54, 19,358.09 and 5,519.41

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Solution

The fourth proportional to 12,917.54, 19,358.09 and 5,519.41 is: 8,271.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,917.54 : 19,358.09 = 5,519.41 : x
  2. Step 2: Convert to fraction form
    12,917.54/19,358.09 = 5,519.41/x
  3. Step 3: Cross multiply
    12,917.54x = 19,358.09 × 5,519.41
  4. Step 4: Simplify right side
    12,917.54x = 106,845,180.23
  5. Step 5: Solve for x
    x = 106,845,180.23/12,917.54
  6. Step 6: Final answer
    x = 8,271.32

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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.