Home / 12,745.36-19,117.64-3,511.28

Finding the Fourth Proportional to 12,745.36, 19,117.64 and 3,511.28

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Solution

The fourth proportional to 12,745.36, 19,117.64 and 3,511.28 is: 5,266.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,745.36 : 19,117.64 = 3,511.28 : x
  2. Step 2: Convert to fraction form
    12,745.36/19,117.64 = 3,511.28/x
  3. Step 3: Cross multiply
    12,745.36x = 19,117.64 × 3,511.28
  4. Step 4: Simplify right side
    12,745.36x = 67,127,386.98
  5. Step 5: Solve for x
    x = 67,127,386.98/12,745.36
  6. Step 6: Final answer
    x = 5,266.81

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Similar ratio
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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.